Jimmy Zhu

ABB Professor of Engineering

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Publications

Invited Conference Papers

1. “Mass Data Storage: Battle Ground between SSD and HDD,” Keynote Speech, Nonvolatile Memory Technology Symposium (NVMTS) 2009, Oct. 26-28, Portland, Oregon. (2009).
2. “MAMR Using PSTO with Switchable Magnetic Electrodes,” The Magnetic Recording Conference (TMRC) 2009, Paper C5, Oct. 5-7, Tuscaloosa, Alabama (2009).
3. “Low Temperature HAMR and Crossbar MRAM Designs,” 2nd Photonics and OptoElectronics Meeting (POEM), Invited Paper, August 8-10, Wuhan, China (2009).
4. “Chirality Switchable STT Oscillator for MAMR,” MORIS 2009, June 21-23, Awaji, Japan.(2009).
5. “TDMR Platform Simulations and Experiments,” 2009 International Conference on Magnetics, May 4-8, Sacramento, CA. (2009).
6. “Binary Anisotropy Structure for HAMR and MRAM Applications,” Asian Magnetics Conference, December 10 – 14, 2008, Pusan, Korea.
7. “New Heights in Magnetic Data Storage,” ISOS, Nov. 23-25., 2008, Wuhan, China.
8. “MAMR with circular AC Field,” The 53rd Annual International Conference on Magnetism and Magnetic Materials, Nov. 14-17, 2008, Austin, TX, U.S.A.
9. “Grain Topography and Impact of Surface Anisotropy in Perpendicular Thin Film Media,” The Magnetic Recording Conference, July 28-30, 2008. Singapore.
10. “Microwave Assisted Magnetic Recording,” Perpendicular Magnetic Recording Conference, October 15-17, 2007, Tokyo, Japan.
11. “Binary Anisotropy Media,” Annual International Conference on Magnetism and Magnetic Materials, November 5-8, 2007, Tampa, FL, U.S.A.
12. “Microwave Assisted Magnetic Recording,” MORIS 2007, Paper F5, Sept. 24-26, Pittsburgh, PA (2007).
13. “Microwave Assisted Magnetic Recording,” 18th The Magnetic Recording Conference, May 20-22, 2007, Minneapolis, MN, U.S.A.
14. “Study of Lithographically Defined Data Track and Servo Patterns,” The Magnetic Recording Conference, May 20-22, 2007, Minneapolis, MN, U.S.A.
15. “Perpendicular Spin Torque Oscillator and its Applications,” MRS Spring Meeting, Symposium on Nanoscale magnetics and Devices Applications (J), April 10-13, 2007, San Francisco.
16. “Micromagnetic Analysis of Percolated Perpendicular Media,” 17th The Magnetic Recording Conference, August 7th – 9th, 2006, Pittsburgh, U.S.A.
17. “High moment materials and fabrication processes for shielded perpendicular write head beyond 200 Gb/in2,” The Magnetic Recording Conference, August 7th – 9th, 2006, Pittsburgh, U.S.A.
18. “Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers,” The Magnetic Recording Conference, August 7th – 9th, 2006, Pittsburgh, U.S.A.
19. “Fabrication, microstructure, magnetic, and recording properties of percolated perpendicular media,” The Magnetic Recording Conference, August 7th – 9th, 2006, Pittsburgh, U.S.A.
20. “Overwrite Mechanism in Perpendicular Recording,” 6th International Symposium on Physics of Magnetic Materials,” September 13th – 16th, 2005, Singapore.
21. “On the Scalability of MRAM,” MORIS 2006, June 6th – 8th, 2006, Chiba, Japan.
22. “Sub-coercivity Perpendicular Recording,” Asian Pacific Data Storage Conference, August 28th, 2006, Hsinchu, Taiwan.
23. “Overwrite Mechanism in Perpendicular Recording,” The Magnetic Recording Conference, August 14-18, 2005, Stanford, California.
24. “Spin Transfer Excited Microwaves in CPP Spin Valves,” SPIE Noise and Fluctuations Conference, May 24, 2005, Austin, TX, U.S.A.
25. “Toward an Understanding of Grain-to-Grain Anisotropy Field Variation in Thin Film Media,” The Magnetic Recording Conference, August 10, 2004. Bolder, Colorado.
26. “Current induced noise in CPP spin valves,” SPIE Noise and Fluctuations Conference, May 26, 2004, Grand Canary, Spain.
27. “Magnetic Random Access Memory: The Path to Competitiveness,” 9th International Conference on Ferrites. August 23, 2004, San Francisco.
28. “Current Induced Magnetic Noise in CPP Spin Valves,” The Magnetic Recording Conference, August 18-20, 2003, Santa Clara, California.
29. “The Role of SUL in Readback and Linear Density Limitation Imposed,” 6th Perpendicular Magnetic Recording Conference, January 6-8, 2003, Monterey, California.
30. “Novel MRAM Design for High Area Densities,” American Physics Society Meeting, March 14, 2002, Indianapolis, Indiana.
31. “MRAM Design Limitations Dictated By Thermally Activated Magnetization Reversal,” Nonvolatile Memory Technology Conference, November 5th, 2002, Honolulu, Hawaii.
32. “Dynamic Micromagnetic Analysis of Single Pole Perpendicular Recording Heads,” North American Perpendicular Recording Conference, January 7th, 2002, Miami, Florida.
33. “MRAM Design Dictated by Thermally Activated Magnetization Reversal,” The 46th Annual Conference on Magnetism and Magnetic Materials, November 12, Seattle, Washington.
34. “Spin Dynamics and Thermal Activation in Small Thin Film Structures,” Material Research Society Annual Conference, November 24, 2001, Boston, Massachusetts.
35. “A New GMR Head Design For Ultra-High Linear Density Recording,” The Magnetic Recording Conference, August 20, 2001, Minneapolis, Minnesota.
36. “Understanding Single Turn Head Design at Narrow Track Widths,” The Magnetic Recording Conference, August 20, 2001, Minneapolis, Minnesota.
37. "Design of Ultra-High Density Vertical Magnetoresistive RAM," The 44th International Conference on Electron, Ion and Photon Beam Technology and Nanofabrication, May 30-June 2, 2000, Rancho Mirage, California.
38. "Vertical Magnetoresistive Random Access Memory," Symposium on Magnetic Materials for Magnetoelectronic Devices, May 17-18, 2000, Ames, Iowa.
39. "Micromagnetic Modeling of Thin Magnetic Films and Device Applications," NATO Summer School on Magnetic Storage Systems Beyond 2000, June 12-23, 2000, Rhodes, Greece.
40. “Ultra-High Density Vertical Magnetoresistive Random Access Memory (VMRAM),” Invited paper at The 44th Annual Conference on Magnetism and Magnetic Materials, November 1999, San Jose, California.
41. “Recording, Noise, and Servo Characteristics of Patterned Thin Film Media,” Invited paper at The Magnetic Recording Conference 1999, San Diego, California.
42. “Understanding Micromagnetics of Patterned Magnetic Devices,” Invited paper at American Physics Society Conference, March, 1999, Atlanta, Georgia.
43. “Dynamic Magnetic Switching in Patterned Thin Film Elements,” Invited paper at The 43rd Annual Conference on Magnetism and Magnetic Materials, November 1998, Miami, Florida.
44. “Spin Valve and Dual Spin Valve Heads with Synthetic Antiferromagnets,” Invited paper at The Magnetic Recording Conference, August, 1998, Boulder, Colorado.
45. “Micromagnetics of Magneto-Electronic Devices,” Invited paper at The Magnetic Multilayers Conference, June, 1998, Vancouver, Canada.
46. “Micromagnetic Behavior in GMR Multilayers Devices,” with Y. Zheng, Invited paper at The Materials Research Society 1997 Fall Meeting, December 1-5, 1997, Boston, Massachusetts.
47. “Micromagnetics of Patterned Magnetic Thin Film Elements,” with Y. Zheng, Invited paper at The 44th National AVS Symposium, October 20-24, 1997, San Jose, California.
48. “Directly Identifying the Order of Layer Switching in Magnetic Multilayers,” with J. W. Freeland, et al, Invited paper at The 44th National AVS Symposium, October 20-24, 1997, San Jose, California.
49. “Nonlinear Behavior of Magnetoresistive Heads,” with Thomas C. Arnoldussen, Invited paper at The Magnetic Recording Conference (TMRC), September 1997, San Jose, California.
50. “Noise Properties in oriented longitudinal film media for MR heads applications,” with H. Fang, Invited paper at The 2nd Thin Film Media Symposium, December 1997, San Jose, California.
51. "Characteristics of Narrow Track Recording in Thin Film Recording Media," Invited paper at The Magnetic Recording Conference, August 1996, Santa Clara, California.
52. “Micromagnetics of small size patterned exchange biased Permalloy film elements,” with Y. Zheng and X. Lin, Invited paper at The Magnetic Material and Magnetism Conference, November 1996, Atlanta, Georgia.
53. "Impact of Microstructure on Stability of Permanent Magnet Biased Magnetoresistive Heads," Invited paper at The Magnetic Recording Conference, July 1995, Pittsburgh, Pennsylvania.
54. "Effect of Microstructure and Crystalline Orientation In Longitudinal Thin Film Media," Invited paper at The 1995 International Magnetics Conference, April 1995, San Antonio, Texas.
55. "Modeling of Magnetic Thin Films," Invited paper at The American Physics Society Annual Meeting, March 1995, San Jose, California.
56. "Noise Characteristics of Interacting Transitions in Longitudinal Thin Film Media," Invited paper at The Magnetic Recording Conference, August 1994, San Diego, California.
57. "Advanced Tape Media for Ultra-High Density Recording," Invited paper at The Perpendicular Recording Conference '94, October 1994, Tokyo, Japan.
58. "Fabrication and Recording Performance of Bicrystal Disks on GaAs Substrates," Invited paper at The Perpendicular Recording Conference '94, October 1994, Tokyo, Japan.
59. "Advanced Microstructures of Thin Film Media For Ultra-High Area Recording Densities," Invited paper at The 3rd IUMRS International Conference on Advanced Materials, August 1993, Tokyo, Japan.
60. "Micromagnetic Study of Barkhausen Jumps in Small Magnetoresistive Sensors," Invited paper at The International Magnetics Conference '93, April 1993, Stockholm, Sweden.
61. "Computed Hysteresis Behavior and Interaction Effects in Spheroid Particle Assemblies," Invited paper at The International Magnetics Conference '93, April 1993, Stockholm, Sweden.
62. "Effect of Easy Axis Orientation and Noise in Thin Film Media," Invited paper at The International Symposium on Barium Ferrite Recording Media, September 1992, Greece.
63. "Transition Noise in Oriented Thin Film Media," Invited paper at The Magnetic Recording Media Conference, September 1992, Italy.
64. "Transition Noise in Longitudinal Thin Film Media", Invited paper at The Magnetic Recording Conference, July 1992, Santa Clara, California.
65. "Effect of In-plane Easy Axis Orientation in Narrow Track Recording", Invited paper at The Magnetic Recording Conference, July 1992, Santa Clara, California.
66. "Nonlinearity in Thin Film Media", Invited paper at The Magnetic Recording Conference, July 1992, Santa Clara, California.
67. "Magnetization Reversal Mechanisms and Domain Structures in Magnetic Thin Films", Invited paper in The 35th Annual Conference on Magnetism and Magnetic Materials, November 1990, San Diego, California.
68. "Micromagnetic Studies of Thin Metallic Films", Invited paper in The 33th Annual Conference on Magnetism and Magnetic Materials, November 1988, Chicago, Illinois.

Book Chapters

1. Jian-Gang (Jimmy) Zhu, "Magnetization Dynamics: Thermally-driven Noise in Magnetoresistive Sensors," Handbook of Magnetism and Advanced Magnetic Materials,Editors-in-Chief: Helmut Kronmuller and Stuart Parkin, Wiley, vol.2, pp. 1083-1091 (2007).
2. J.-G. Zhu, “Magnetization Reversal Dynamics,” Encyclopedia, Edited by J. Buschow, Elsevier, 2004.
3. J.-G. Zhu and Y. Zheng, “Micromagnetics of Magnetoresistive Random Access Memory,” Spin Dynamics in confined Magnetic Structures I. Edited by B. Hilebrands and K. Ounadjela, Springer, p. 289-325 (2001).
4. J.G. Zhu, “Micromagnetic Modeling of Domain Structures in Magnetic Thin Films,” Magnetic Imaging And It’s Applications to Materials, Chapter 1, V. 36, Edited by Marc de Graf and Yimei Zhu, Academic Press (2001).
5. J.-G. Zhu, "Micromagnetics of Thin Film Media", Magnetic Recording Technology (Chapter 5) Edited by C.D. Mee and E. Daniel, McGraw Hill (Dec. 1995).
6. H.N. Bertram and J.-G. Zhu, "Fundamental Magnetization Processes in Thin Film Recording Media", Solid State Physics, Edited by H. Ehrenreich and D. Turnbull, vol.46, pp.271-371, Academic Press (1992).
7. J.-G. Zhu , "Micromagnetic Modeling of Thin Film Recording Media", Noise in Digital Magnetic Recording, Edited by T.C. Arnoldussen and L. Nunnelley, Chapter 6, World Scientific (1992).

General Review Articles in Magazines

• Jian-Gang Zhu and Chando Park, “Magnetic Tunnel Junctions,” Materials Today, vol. 9, No. 11, p. 36-45, November , 2006.
• R. Ditizio, P. Werbaneth, and J.-G. Zhu, “Cell Shape and Patterning Considerations for Magnetic Random Access Memory (MRAM) Fabrication,” Semiconductor Manufacturing, Vol. 5, Issue 1, January 2004, p. 90.
• J.-G. Zhu, “New Heights for Disk Drives,” Cover story in Materials Today, July/August issue, 2003, p.22-31.
• J.-G. Zhu and G.A. Prinz, “VMRAM memory holds both promise and challenges,” Data Storage, September 2000, p.40-45.

Refereed Major Journal Publications

• V. Sokalski, D.E. Laughlin, and J.-G. Zhu, “Experimental modeling of intergranular exchange coupling for perpendicular thin film media,” Appl. Phys. Lett., 95, 102507 (2009).
• Y. Wang, Y. Tang, and J.-G. Zhu, “Media damping constant and performance characteristics in microwave assisted magnetic recording with circular ac field,” J. of Appl. Phys., 105, 07B902 (2009).
• J-H. Park, C. Park, and J.-G. Zhu, “Interfacial Oxidation Enhanced Perpendicular Magnetic Anisotropy in Low Resistance Magnetic Tunnel Junctions Composed of Co/Pt Multilayer Electrodes,”  IEEE Trans. Magn.., vol.44, p. 2577-2580. (2009).
• Y. Wang and J.-G. Zhu, “Simulation of Realistic Particle Packing and Impact to High Density Tape Recording,” IEEE Trans. Magn., vol.45, p.3737-3740. (2009).
• K. S. Chan, J. J. Miles, E. Hwang, B.V.K. VijayaKumar, J.-G. Zhu, W. Lin, and R. Negi, “TDMR Platform Simulations and Experiments,” IEEE Trans. Magn., vol.45, p.3837-3843 (2009).
• J.-H. Park, M. Moneck, C. Park, and J.-G. Zhu, , “Spin-transfer induced switching in nanomagnetoresistive devices composed of Co/Pt multilayer with perpendicular anisotropy,”  J. of Appl. Phys., 105, 07D129 (2009).
• D.E. Laughlin, N.T. Nuhfer, S. Park, H. Yuan, and J.-G. Zhu, “Topology and elemental distribution in Co alloy:oxide perpendicular media,” J. of Appl. Phys., 105, 07B739 (2009).
• S. Park, J.-G. Zhu, and D.E. Laughlin, “A novel crystalline soft magnetic intermediate layer for perpendicular recording media”  J. of Appl. Phys., 105, 07B723 (2009).
• J.-G. Zhu, H. Yuan, S. Park, T. Nuhfer, and D.E. Laughlin, “Grain Topography in Perpendicular Thin-Film Media and Impact of Possible Surface Anisotropy,” (Invited Paper) IEEE Trans. Magn., vol.45, p.911-916 (2009).
• J.-G. Zhu, “Magnetoresistive Random Access Memory: The Path to Competitiveness and Scalability,” (Invited Paper) Proceedings of the IEEE, vol.96, 11, p.1786-1798 (2008).
• J.-G. Zhu, X. Zhu, and Y. Tang, “Microwave Assisted Magnetic Recording,”, IEEE Trans. Magn., vol. 44, pp.125-131 (2008)
• J.-H. Park, C. Park, and J.-G. Zhu, “Interfacial oxidation enhanced perpendicular magnetic anisotropy in low resistance magnetic tunnel junctions composed of Co/Pt multilayer electrodes,” IEEE Trans. Magn,, vol.44, pp.2577-2580 (2008).
• M. T. Moneck and J.-G. Zhu, “Spin Transfer Torque in Deep Submicron Annular CPP-GMR Devices,” IEEE Trans. Magn., 44, 2500 (2008).
• K. Moon, X. Che, Y. Tang, H. J. Lee, Y. Tang, M. T. Moneck, J.-G. Zhu, and N. Takahashi, “Writability in Discrete Track Media,” IEEE Trans. Magn., 44, pp.3442 (2008).
• M. T. Moneck, J.-G. Zhu, Y. Tang, K.-S. Moon, H. J. Lee, S. Zhang, X. Che, and N. Takahashi, “Lithographically Patterned Servo Position Error Signal Patterns in Perpendicular Disks,” J. Appl. Phys., 103,  pp.07C511 (2008).
• J.-H. Park, C. Park, T. Jeong, M. T. Moneck, N. T. Nufer, and J.-G. Zhu, “Co/Pt Multilayer Based Magnetic Tunnel Junctions Using Perpendicular Magnetic Anisotropy,” J. Appl. Phys., 103, 07A917 (2008).
• M. Sachan, C. Bonnoit, C. Hogg, E. Evarts, J. A. Bain, S. A. Majetich, J.-H. Park, and J.-G. Zhu, “Self-Assembled Nanoparticle Arrays as Nanomasks for Pattern Transfer,” J. Phys. D, 41, pp.134001 (2008).
• Y. Wang and J.-G. Zhu, "Dual easy axes effect on nanosized near-spherical particles for advanced tape storage", IEEE Trans. Magn. , , Vol. 44, No. 11, p. 3557 (2008)
• Y. Tang and J.-G. Zhu, “Narrow Track Confinement by AC Field Generation Layer in Microwave Assisted Magnetic Recording,” IEEE Trans. Magn., 44, pp.3376-3379 (2008).
• Y. Tang, X. Che, H. J. Lee, and J.-G. Zhu, “Understand Adjacent Track Erasure in Discrete Track Media,” IEEE Trans. Magnetics, 44, pp. 4780-4783 (2008).
• H.S. Lee, J.-G. Zhu, and DE Laughlin, “CoCrPt- SiO2 granular- type longitudinal media on Ru underlayer for sputtered tape applications,” J. of Appl. Phys., Volume 103, Article Number: 07F545, (2008)
• H.S. Lee, J.-G. Zhu, and DE Laughlin, “Control of resputtering in biased CoCrPt- SiO2 media to enhance grain decoupling and grain size distribution,” J. of Appl. Phys., Volume 103, Article Number: 07F541, (2008).
• Y. Tang; J.-G. Zhu, S. Hong; and X. Che，“Optimization of perpendicular recording on exchange coupled composite media,” J. of Appl. Phys. 103, 07F527, (2008).
• S. Hong, X. Che, Y. Tang, and J.-G. Zhu, “Reduction of adjacent track encroachment in exchange coupled composite media through soft magnetic layer with high Ku,” J. of Appl. Phys. 103, 07F530 (2008).
• C. L. Chien, Frank Q. Zhu, and Jian-Gang Zhu, “Patterned Nanomagnets.,” Physics Today, vol. 60, Issue 6, pp.40-45. (2007)
• X. Zhu and J.-G. Zhu, “Effect of damping constant on magnetic switching in spin torque driven perpendicular MRAM,” IEEE Trans. Magn., vol. 43, p.2349 (2007).
• Y.-L. Qin, D.-E. Laughlin, Y. Peng, and J.-G. Zhu, “The effect of post-annealing on microstructure and magnetic properties of percolated perpendicular media,” IEEE Trans. Magn., vol. 43, p. 2136 (2007)
• X. Che, Y. Tang, K.-S. Moon, Y. Tang, N.-Y. Kim, S.-Y. Hong, H. J. Lee, M. Moneck, J.-G. Zhu, and N. Takahashi, “Study of Lithographically Defined Data Track and Servo Patterns,” IEEE Trans. Magn./, 43, 4106 (2007).
• M. Moneck, J.-G. Zhu, X. Che, Y. Tang, H. J. Lee, S. Zhang, K.-S. Moon, and N. Takahashi, "Fabrication of Flyable Perpendicular Discrete Track Media," IEEE Trans. Magn., 43, 2127 (2007).
• X. Che, Y. Tang, H. J. Lee, S. Zhang, K.-S. Moon, N.-Y. Young, S.-Y. Hong, N. Takahashi, M. Moneck, J.-G. Zhu, “Recording Performance Study of PMR Media with Patterned Tracks,” IEEE Trans. Magn. 43, 2292 (2007).
• Y. Tang and J. Zhu, “Domain Wall Pinning and Corresponding Energy Barrier in Percolated Perpendicular Medium,” IEEE Trans. Magn., vol. 43, pp. 2139-3141, 2007.
• J. Zhu and Y. Tang, “Micromagnetics of percolated perpendicular medium,” IEEE Trans. Magn., vol. 43, pp. 687-692, 2007.
• Bai, D. Z.; Luo, P.; Torabi, A.; Terrill, D.; Wang, J.; Stoev, K.; Liu, F.; Moneck, M.; Tang, Y.; Zhu, J.-G., “Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers,” IEEE Trans. Magn., vol. 43, pp. 600-604, 2007.
• M. Tanase, J.-G. Zhu, C. Liu, N. Shukla, T.J. Klemmer, D. Weller, and D.E. Laughlin, “Structure Optimization of FePt Nanoparticles of Various Sizes for Magnetic Data Storage,” Metallurgical and Materials Transactions A, vol.38A, p.798. (2007).
• S. Nabavi, B. V. K. Vijaya Kumar and J.-G. Zhu, “Modifying Viterbi Algorithm to Mitigate Inter-track Interference for Bit-Patterned Media,” IEEE Trans. Magn., vol.43, p. (2007)
• Y. Chen, K.Sin, H. Jiang, Y. Tang, K. Sasaki, A. Torabi, L. Wang, M. Park, D. Bai, Y. Shen, P. Luo, F. Liu, K. Stoev, W. Lin, and J.-G Zhu, “High moment materials and fabrication processes for shielded perpendicular write head beyond 200 Gb/in2,” IEEE Trans. Magn., vo. 43, p.609 (2007)
• D.E. Laughlin, Y. Peng, Y.-L. Qin, M. Lin, and J.-G. Zhu, “Fabrication, microstructure, magnetic, and recording properties of percolated perpendicular media,” IEEE Trans. Magn., vol.43, No.2, p.693 (2007).
• Y. Zhou and J.-G. Zhu, “Experimental Study of Perpendicular Write Heads at Data Rates Beyond 2 Gb/s,” IEEE Trans. Magn., vol.42, p.2425, 2006.
• J.-G. Zhu, Y. Zhou, and S. Mao, “Spin Torque Enhancement of Thermally Excited Ferromagnetic Resonance I Tunneling MR Heads,” IEEE Trans. Magn., vol. 42, No.10, p.2441, 2006.
• X. Zhu and J.-G. Zhu, “Spin Torque and Field-Driven Perpendicular MRAM Designs Scalable to Multi-Gbi/Chip Capacity,” IEEE Trans. Magn, vol.42, p.2739, 2006.
• Y. Tang and J.-G. Zhu, “Micromagnetics of Percolated Perpendicular Medium for 1 Tb/in2 and Beyond,” IEEE Trans. Magn., vol.42, p.2360, 2006.
• C. Park, Y.-H. Wang, D.E. Laughlin, and J.-G. Zhu, “Effect of Adjacent Layers on Crystallization and Magnetoresistance in CoFeB/MgO/CoFeB Magnetic Tunnel Junction,” IEEE Trans. Magn, 42, p.2639, 2006.
• X. Zhu and J.-G. Zhu, “Bias-Field-Free Microwave Oscillator Driven by Perpendicularly Polarized Spin Current,” IEEE Trans. Magn., vol.42, p.2670, 2006.
• X. Bi, S. Chu, J.-G. Zhu, and D.E. Laughlin, “Microstructure and magnetoelectric properties in Pb(ZrxTi1-x)O3-Ni composite ferroic films,” J. of Appl. Phys., 99, 08B306, 2006
• Y. Peng, J.-G. Zhu, and D.E. Laughlin, “L10 FePt-MgO perpendicular thin film deposited by alternating sputtering at elevated temperature,” J. Appl. Phys., 99, 08P907, 2006.
• J.-G. Zhu and Y. Tang, “A Novel Medium Microstructure for High Area Density Perpendicular Recording,” J. of Applied Physics, vol. 99, p.p08Q903, 2006.
• M. Moneck and J.-G. Zhu, “Fabrication and testing of deep submicron annular vertical magnetoresistive random access memory elements,” J. of Applied. Physics, vol.99, 08H709, 2006.
• C. Park, J.-G. Zhu,Y. Peng, D. E. Laughlin, “Annealing Effects on Structural and Transport Properties of RF-Sputtered CoFeB/MgO/CoFeB Magnetic Tunnel Junctions,” J. Appl. Phys., 99, 08A901, 2006.
• F.Q. Zhu, G.W. Chern, O. Tchernyshyov, X. C. Zhu, J.-G. Zhu, and C.L. Chien, “Magnetic Bistability and Controllable Reversal of Asymmetric Ferromagnetic Nanorings,” Physical Review Letters., PRL 96, 027205, January 20, 2006.
• D.Z. Bai, J.-G. Zhu, P. Luo, K. Stoev, F. Liu, “Writer Pole Tip Remanence in Perpindicular Recording,”, IEEE Trans. Magn.,vol. 42, 2006.
• J.-G. Zhu, “Pinholes and spin transfer effect in magnetic tunnel junction heads,” J. Appl. Phys., 10N703-1-3 (2005).
• J.-G. Zhu and Y. Zhou, “Experimental Study of Overwrite Mechanism in Perpendicular Recording,” IEEE Trans. Magn., V. 41, No. 10, pp. 3076-3078 (2005)
• J.-G. Zhu, Y. Peng, and D.E. Laughlin, “Toward an Understanding of Grain-to-Grain Anisotropy Field Variation in Thin Film Media,” IEEE Trans. Magn., V. 41, No. 2, pp. 543-548 (2005).
• J.M. Anderson, D.J. Brownell, G.A. Prinz, H. Huggins, L.V. Van, J.A. Christodoulides,and J.-G. Zhu, “Address line-assisted switching of vertical magnetoresistive random access memory,” to appear in J. Appl. Phys., vol. 97 (2005).
• C. Park, J.-G. Zhu, Y. Peng, D.E. Laughlin, and R.M. White, “Inverse magnetoresistance in magnetic tunnel junction with a plasma-oxidized Fe electrode and the effect annealing on its transport properties,” J. Appl. Phys., 97, 10C907-1-3 (2005)
• C. Park, Y. Peng, J.-G. Zhu, D.E. Laughlin, and R.M. White, “Magnetoresistance of polycrystalline Fe3O4 films prepared by reactive sputtering at room temperature,” J. Appl. Phys., 97, 10C303 (2005)
• Y. Zhou and J.-G. Zhu, “Dependence of the pole-tip remanence on the medium magnetization state underneath the trailing shield of a perpendicular write head,” J. Appl. Phys., 97, 10N518-1-3 (2005)
• Y. Zhou, J.-G. Zhu, Y.-S. Tang, and L. Guan, “Perpendicular write heads performance characterization using a scanning contact recording tester,” J. Appl. Phys., 97, 10N903-1-3 (2005)
• J.-G. Zhu and X. Zhu, “Spin transfer induced noise in CPP read heads,” IEEE Trans. Magn., vol. 40, No. 1, pp. 182 (2004)
• J.-G. Zhu and D. Bai, “voltage Assisted Perpendicular Write Head,” IEEE Trans. Magn., vol. 40, No. 4, pp.2344 (2004)
• J.-G. Zhu, et al, “Current Induced Noise in CPP Spin Valves,” IEEE Trans. Magn., vol. 40, No. 4, pp.2323 (2004)
• Y. Peng, C. Park, J.-G. Zhu, R.M. White, D. Laughlin, “Characterization of interfacial reactions in magnetite tunnel junctions,” J. of Appl. Physics, vol. 95, No.11, pp. 6798 (2004)
• Z. Bai, J.-G. Zhu, W. Yu, and J. Bain, “Micromagnetic simulation of effect of stress-induced anisotropy in soft magnetic thin films,” J. of Appl. Phys., vol. 95, No. 11, pp.6864 (2004)
• J.-G. Zhu, Y. Peng, and D. Laughlin, “Toward an Understanding of Grain-to-Grain Anisotropy Field Variation in Thin Film Media,” IEEE Trans. Magn., vol. 41, No. 2, pp.543 (2005)
• X. Zhu and J.-G. Zhu, “Angular dependence of the microwave excitation by direct current,” J. of Appl. Phys., vol. 95, No. 11, pp.7318 (2004).
• D. Bai, A.F. Torabi, M. Benakli, M.L. Mallary, and J.-G. Zhu, “Micromagnetic Modeling of SNR Performance of Longitudinal and Perpendicular Media with Various Head/SUL Combinations,” IEEE Trans. Magn., Vol.40, No. 4, pp. 2555 (2004).
• X. Zhu, J.-G. Zhu, and R. M. White, “Spin transfer excited regular and chaotic spin waves in current perpendicular to plane spin valves,” J. of Appl. Phys., Vol. 95, no. 11, pp. 6630 (2004).
• L. Zhang, J. Bain, J.-G. Zhu, L. Abelmann, and T. Onoue,“A Model for Mark Size Dependence on Field Emission Voltage in Head-Assisted Magnetic Probe Recording on CoNi/Pt Multilayers,” IEEE Trans. Magn., vol.40, no. 4, pp.2549 (2004)
• Y. Yang, S. Shojaeizadeh, J. Bain, J.-G. Zhu, and M. Asheghi, “Detailed modeling of temperature rise in giant magnetoresistive sensor during an electrostatic discharge event,” J. of Appl. Phys., vol.95, no. 11, pp. 6780 (2004)
• L. Guan, Y.-S. Tang, B. Hu, and J.-G. Zhu, “Thermal Stability Enhancement of Perpendicular Media with High-Order Uniaxial Anisotropy,” IEEE Trans. Magn., vol. 40, pp. 2579 (2004).
• F. Q. Zhu, D. Fan, X. Zhu, J.-G. Zhu, R. C. Cammarata, C.-L. Chien “Ultrahigh-Density Arrays of Ferromagnetic Nanorings on Macroscopic Areas,” Advanced Materials, v16, No.23-24, pp.2155 (2004).
• J.-G. Zhu, “Side-reading free spin-valve read sensor,” IEEE Trans. Magn., Vol. 39, January 2003, p.576-579.
• J.-G. Zhu, D. Bai, and. A. F. Torabi, “The role of SUL in readback and effect on linear density performance for perpendicular recording,” IEEE Trans. Magn., Vol. 39, July 2003, p.1961-1966.
• J. Schare, L. Guan, J.-G. Zhu, and M. Kryder, “Design consideration for spin-pole-type write heads,” IEEE Trans. Magn., Vol. 39, May 2003, p.1842-1845.
• C. Park, Y. Shi, Y. Peng, K. Barmak, J.-G. Zhu, D.E. Laughlin, and R.M. White, “Interfacial composition and microstructure of Fe3O4 magnetic tunnel junctions,” IEEE Trans. Magn., Vol.39, Sept. 2003, p.2806-2809.
• X. Zhu and J.-G. Zhu, “A vertical MRAM free of write disturbance,” IEEE Trans. Magn., Vol. 39, Sept. 2003, p.2854-2857.
• J.-G. Zhu and D. Bai, “Understand field rise time and magnetic damping in thin film recording heads,” J. Appl. Phys., V. 91, May 2003, p.6447-6450.
• X. Zhu and J.-G. Zhu, “On the shape optimization of magnetic random access memory element design,” J. App. Phys., Vol. 93, May 2003, p.8376-8378.
• L. Guan and J.-G. Zhu, “Bicristal structure of tilted perpendicular media for ultra-high-density recording,” J. Appl. Phys., V. 91, May 2003, p.7735-7738.
• D. Bai and J.-G. Zhu, “Stitched pole-tip design and enhanced head field for perpendicular recording,” J. Appl. Phys., V. 91, May 2003, p.6540-6542.
• Y. Zhou, N. Kim, and J.-G. Zhu, “Thermally excited ferromagnetic resonance as a diagnostic tool for spin valve heads,” J. Appl. Phys., V. 91, May 2003, p.8579-8582.
• A. Roesler, J.-G. Zhu, “Quantifying Advanced Tape Medium Noise,” IEEE Trans. Magn., V. 37, No. 2, March 2001, pp.1059-1066.
• L. Guan, J.-G. Zhu, “Recording, noise, and medium microstructure in perpendicular recording with a soft magnetic underlayer,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 8363-8365.
• L. Guan, J.-G. Zhu, “Analysis of thermal stability enhancement in double layer antiferromagnetically coupled media,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 7688-7690.
• P. Herget, T. Rausch, A.C. Shiela, D.D. Stancil, T.E. Shlesinger, J.-G. Zhu, and J. Bain, “Mark shapes in hybrid recording,” Applied Physics Letter, vol.80, p.1835 (2002).
• Y. Zhou, A. Roesler, J.-G. Zhu, “Experimental observations of thermally excited ferromagnetic resonance and mag-noise spectra in spin valve heads,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 7276-7278
• J.-G. Zhu,“Thermal magnetic noise and spectra in spin valve heads,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 7273-7275.
• Y. Peng, J.-G. Zhu, D. E. Laughlin, “Interfacial Co nanolayers for enhancing interlayer exchange coupling in antiferromagnetic interlayer exchange coupling media,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 7676-7678.
• . Z. Bai, J.-G. Zhu, “Micromagnetics of perpendicular write heads with extremely small pole tip dimensions,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 6833-6835.
• A.Roesler, J.-G. Zhu, “Understanding the effect of the tape surface on the metal-particle tape medium noise,” J. Appl. Phys., V. 91, No. 10, May 2002, pp. 8745-8747.
• L. Zhang, J.A. Bain, J.-G. Zhu, “Dependence of thermomagnetic mark size on applied stm voltage in co-pt multilayers,” IEEE Trans. Magn., V. 38, No. 5, September 2002, pp.1895-1897.
• L. Guan, J -G. Zhu, “Effect of fast head field rise time in perpendicular recording” IEEE Trans. Magn., V. 38, No. 5, September 2002, pp. 2024-2026.
• A. Roesler, N. Kim, J.-G. Zhu, “Track-width dependence of medium noise in metal-particle tape systems,” IEEE Trans. Magn., V. 38, No. 5, September 2002, pp. 3556-3559.
• D. Z. Bai, J.-G. Zhu, “A detached pole tip design of perpendicular write heads for high data-rate recording,” IEEE Trans. Magn., V. 38, No. 5, September 2002, pp. 2240-2242.
• J -G. Zhu, C.Y. Mao, R.M. White, S. Batra, R. Rottmayer, “Understanding single-turn write head design at narrow track widths,” IEEE Trans. Magn., V. 38, No.1, January 2002, pp. 124-128.
• L. Guan and J -G. Zhu, “Recording Characteristics and Thermal Stability of AFC Thin Film Media,” IEEE Trans. Magn., V. 37, No.4, July 2001, pp.1452-1455.
• R.C. Shi and J.-G. Zhu, “Impact of Magnetic Interactions on Thermal Stability of Longitudinal Thin Film Media,” IEEE Trans. Magn., V. 37, No.4, July 2001, pp.1554-1557.
• A.Roesler, J.-G. Zhu, “Experimental Analysis of Tape Noise,” IEEE Trans. Magn., V.37, No. 4, July 2001 pp. 1627-1629.
• J.-G. Zhu, Y. Zheng, S. Liao, “Patterned Exchange Stabilized Spin Valve Heads at Very Narrow Track Widths,” IEEE Trans. Magn., V.37, No. 4, July 2001, pp. 1723-1726.
• K. Bussmann, G.A. Prinz, R. Bass, J.-G. Zhu, “Current-driven reversal in annular vertical giant magnetoresistive devices,” Appl. Phys. Let. V. 78, No. 14, April 2001, pp. 2029-2030.
• A. Roesler, J.-G. Zhu, “Evaluation of MP tape packing homogeneity through depth-probing,” J.M.M., V. 234, No. 1, August 2001, pp.184-192.
• T.-N. Fang, J.-G. Zhu, “2D Write Addressability of Tunneling Junction MRAM Elements,” IEEE Trans. Magn., V. 37, No. 4, July 2001, pp.1963-1966.
• A. Roesler, J.-G. Zhu, “Novel Magnetic Characterization of the Head-Medium Interface in Metal Particle Tape,” IEEE Trans. Magn., V. 37, No. 5, pp. 3850-3859.
• A. Roesler, J. G. Zhu, “Write Equalization in Future Tape Channels,” IEEE Trans.
Magn., V. 36, No. 5, September 2000, pp. 2207-2209.
• F. Sarigoz, G. Li, B.V.K. Vijaya Kumar, J. A. Bain, and J.-G. Zhu, “Analysis of Dropout Peakshift in Magnetic Tape Recording,” IEEE Trans. Magn., V. 36, No. 5, September 2000, pp. 2170-2172.
• L. Guan, J.-G. Zhu, “Investigation of Patterned Thin Film Media for Ultra-High Density Recording,” IEEE Trans. Magn., V. 36, No.5, September 2000, pp. 2297-2299.
• G. Li, J.-G. Zhu, “Effects of Write Head Field Rise-Time in Tape Recording,” IEEE Trans. Magn., V. 36, No. 5, September 2000, pp. 2444-2446.
• R. C. Shi, J.-G. Zhu, B. B. Lal, S. S. Malhotra, M. Schultz, and M. A. Russak, “Spin-Stand Characterization of Thermal Stability in High Density Disk Media,” IEEE Trans. Magn., V. 36, No. 5, September 2000, pp. 2462-2464.
• T.N. Fang and J.-G. Zhu, “Effect of Crystalline Microstructure in Patterned Co and Permalloy/Co Film Elements,” IEEE Trans. Magn., V. 36, No.5, September 2000, pp. 2623-2625.
• X. Lin, J.-G. Zhu, W. Messner, “Spin Stand Study of Density Dependence of Switching Properties in Patterned Media,” IEEE Trans. Magn., V. 36, No. 5, September 2000, pp. 2999-3001.
• X. Lin, J.-G. Zhu, W. Messner, “Investigation of advanced position error signal patterns in patterned media,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 5117-5119.
• C.Y. Mao, J.-G. Zhu, R.M. White, “High speed characteristics of thin film write heads at deep submicron track width,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 5416-5418.
• L. Abelmann, J.-G. Zhu, J. A. Bain, K. Ramstock, C. Lodder, “Micromagnetic simulation of a flux guide for a read head with sub-100 nm resolution,” J. Appl. Phys., V. 87, No.9, May 2000, pp. 5538-5540.
• A. Roesler, J.-G. Zhu, “Correlation of surface roughness with the recording characteristics of thin metal-particle tape,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 5663-5665.
• L. Abelmann, S. Khizroev, D. Litinov, J.-G. Zhu, J. A. Bain, M. H. Kryder, K. Ramstock, and C. Lodder, “Micromagnetic simulation of an ultrasmall single-pole perpindicular write head,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 6636-6638.
• J.-G. Zhu, Y. Zheng, G. A. Prinz, “Ultrahigh density vertical magnetoresistive random access memory,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 6668-6673.
• T.N. Fang, J.-G. Zhu, “Switching fluctuations and density limitations of pseudospin valve memory,” J. Appl. Phys., V. 87, No. 9, May 2000, pp. 7061-7063.
• J.-G. Zhu, X. Lin, L. Guan, W. Messner, “Recording Noise, and Servo Characteristics of Patterned Thin Film Media,” IEEE Trans. Mag.,V. 36, No. 1, January 2000, pp. 23-29.
• J.-G. Zhu, “Spin Valve and Dual Spin Valve Heads with Synthetic Antiferromagnets,” IEEE Trans. Magn., V. 35, No. 2, March 1999, pp. 655-660.
• Y. Zheng, J.-G. Zhu, “Effect of grain size and crystalline orientation on magnetic switching,” J. Appl. Phys., V. 85, No. 8, April 1999, pp. 4776-4778.
• R.C. Shi, J.-G. Zhu, “Impact of write current wave form on high frequency magnetic recording,” J. Appl. Phys., V. 85, No. 8, April 1999, pp. 5864-5866.
• Y. Mao, J.-G. Zhu , R. M. White, “Effect of damping constant on the switching limit of a thin-film recording head,” J. Appl. Phys., V. 85, No. 8, April 1999, pp. 5870-5872.
• J. Shi. S.Tehrani. T. Zhu, Y.F. Zheng, J.-G. Zhu, “Magnetization vortices and anomalous switching in patterned NiFeCo submicron arrays,” Appl. Phys. Let., V. 74, No. 17, April 1999, pp. 2525-2527.
• G. Li, J.-G. Zhu, “Understanding Write Equalization in High Density Tape Recording,” IEEE Trans. Magn., V. 35, No. 5, pp. 2781-2783, September 1999.
• T.N. Fang, J.-G. Zhu, “Dynamic Switching Characteristics of Pseudo-Spin Valve Memory Elements,” IEEE Trans. Magn., V. 35, No. 5, September 1999, pp. 2835-2837.
• R.C. Shi, J.-G. Zhu, B. Lal, S. Malhotra, D. Stafford, M. Russak, S. Doherty, “Understanding Overwrite for High Speed Magnetic Recording,” IEEE Trans. Magn., V. 35, No. 5, September 1999, pp. 2532-2534.
• W.Yi, R.E. Jones, Jr., J.-G. Zhu, R.M. White, “Analytical Approach to Driving Efficiency in Yoke GMR Heads,” IEEE Trans. Magn., V. 35, No. 5, September 1999, pp. 2550-2552.
• H.C. Tong, X. Shi, F. Liu, C. Qian, Z.W. Dong, X. Yan, R. Barr, L. Miloslavsky, S. Zhou, J. Perlas, P. Prabhu, M. Mao, S. Funada, M. Gibbons, Q. Leng, J.G. Zhu, S.Dey, “Greater Than 14 Gb/in2 Spin Valve Heads,” IEEE Trans. Magn., V. 35, No. 5, September 1999, pp. 2574-2579.
• H. Fang, J.-G. Zhu, “Gyromagnetic Switching Limitations in Thin Film Media,” IEEE Trans. Magn., V. 35, No. 5, September 1999, pp. 2718-2720.
• J.-G. Zhu, X. Lin, R. C. Shi, and Y. Luo, "Magnetic Force Microscopy Image Restoration Technique for Removing Tip Dependence," J. Appl. Phys., V. 83, No. 11, June 1998, pp. 6223-6225.
• S.A. Doherty, J.-G. Zhu, M. Dugas, S. Anderson, and J. Tersteeg, "Correlation Between Evolving Magnetic and Morphological Properties in Magnetic Multilayers," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 840-842.
• K. Bussmann, S.F. Chang, G.A. Prinz, Y. Hu, R. Gutmann, D. Wang, R. Beech, J-G. Zhu, "CPP Giant Magnetoresistance of NiFeCo/Cu/CoFe/Cu Multilayers," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 924-926.
• J. Shi, T. Zhu, M. Durlam, E. Chen, S. Tehrani, Y.F. Zheng, and J.-G .Zhu, " End Domain States and Magnetization Reversal in Submicron Magnetic Structures," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 997-999.
• J.-G. Zhu, Y. F. Zheng, "Characteristics of AP Bias in Spin Valve Memory Elements," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 1063-1065.
• J. Gadbois, J. G. Zhu, W. Vavra, A Hurst, "The Effect of End and Edge Shape on the Performance of Pseudo-Spin Valve Memories," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 1066-1068.
• J.-G. Zhu, H. Fang, "Micromagnetic Study of Network Media," IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 1609-1611.
• Y. Chen, M. Xiao, J.-G. Zhu, M. H. Kryder, "Observation of Magnetic Domain Structure and Switching in Barium Ferrite Thin Films,” IEEE Tran. Magn., V. 35, No. 1, January 1999, pp. 583-593.
• J.-G. Zhu, Y.F. Zheng, X. Lin, “Micromagnetics of small size patterned exchange biased Permalloy film elements” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 4336-4341.
• J.-G. Zhu, T. Lam, H. Fang, T. Chang, H.C. Tong, R. Rottmayer, “Narrow Track Recording Characteristics in Thin Film Media,” IEEE Trans. Magn., V. 33, No. 1, January 1997, pp. 984-989.
• T. Lam, J.-G. Zhu, H.C. Tong, “Effect of Head Skew on Edge Erasure and Transition Noise at Submicron Recording Track Width,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 2719-2721.
• H. Fang, J.-G. Zhu, “Transition Noise in Nanobicrystalline Thin Film Media,” IEEE Trans. Magn., V. 33, No.5, September 1997, 2950-2952.
• D.H. Han, J.-G. Zhu, J. H. Judy, J. M. Sivertsen, “ Time Decay of Magnetization in Longitudinal CoCrTa/Cr High Density Thin Film Media,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3025-3027.
• J. Chen, X. Lin, J.-G. Zhu, J. H. Judy, “Experimental Study of Recording Performance of Sendust and CoZrNb Keepered Thin Film Media,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3040-3042.
• Y. Zheng, J.-G. Zhu, “Micromagnetic Principles in Pseudo Spin Valve Memory Element Design,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3286-3288.
• J. Gadbois, J.-G. Zhu, “Effect of Crystalline Anisotropy in AMRAM Cells,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3301-3303.
• D.H. Han, J.-G. Zhu, J. Judy, J.M. Sivertsen, “ Effects of Surface/ Interface Morphology on Giant Magnetoresistance and Magnetic Field Sensitivity of NiO-Based Spin -Valves,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3550-3552.
• S.A. Doherty, J.-G. Zhu, “Interlayer Interaction In Giant Magnetoresistive Multilayers,” IEEE Trans. Magn., V. 33, No. 5, September 1997, pp. 3694-3696.
• J.W. Freeland, V. Chakarian, Y.U. Idzerda, S. Doherty, J.-G. Zhu, J.-H. Park and C.-C. Kao, “Identifying layer switching in magnetic multilayers with x-ray resonant magnetic scattering,” Appl. Phys. Let., 71(2), July 1997, pp. 276-278.
• D.H. Han, J.-G. Zhu, J. H. Judy, J. M. Sivertsen, “Stress effects on exchange coupling field, coercivity, and uniaxial anisotropy field of NiO/NiFe bilyer thin film spin valves,” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 4519-4521.
• H. Fang, J.-G. Zhu, “Micromagnetics of NiFe Ag giant magnetoresistance multilayer thin films,” (abstract), J. Appl. Phys., V. 81, No. 8 (2A), April 1997, p. 4585.
• D.H. Han, J.-G. Zhu, J. H. Judy, J.M. Sivertsen, “Effect of stress on exchange coupling field, coercivity, and uniaxial anisotropy field of NiFe/NiO bilayer thin films, “ Appl. Phys. Lett, vol.70. p. 664 (1997).
• J.-G. Zhu, T. Lam, J. Ding, Y. Luo, H. Wang, “In- situ measurement of magnetoresistive head transfer curves on a spin stand tester,” J. Appl. Phys., V. 81, No. 8, April 1997, p. 4897.
• J.-G. Zhu, D. J. O’Connor, “ Stability of soft-adjacent-layer magnetoresistive heads with patterned exchange longitudinal bias,” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 4890-4892.
• P.K. George, J.-G. Zhu, “Signal to noise ratio comparison of SAL versus dual-stripe magnetoresistive heads under comparable reliability conditions,” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 4900-4902.
• D.H. Han, J.-G. Zhu, J. H. Judy, “NiFe/NiO bilayers with high exchange coupling and low coercive fields,” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 4996-4998.
• Y. Q. Jia, S. Y. Chou, J.-G. Zhu, “Effect of bar width on magnetoresisitance of nanoscale nickel and cobalt bars,” J. Appl. Phys., V. 81, No. 8, April 1997, pp. 5461-5463.
• Y.F. Zheng, J.-G. Zhu, “Switching field variation in patterned submicron magnetic film elements,” J. .Appl. Phys., V. 81, No. 8, April 1997, pp. 5471-5473.
• J.Gadbois, J.-G. Zhu, W. Vavra, A. Hurst, “The Effect of End and Edge Shape on the Performance of Pseudo-Spin Valve Memories,” J. Appl. Phys., V. 34, No. 4, July 1998, pp.1066-1068.
• S.A.Doherty, J.-G. Zhu, M. Dugas, S. Anderson, J. Tersteeg, “Correlation Between Evolving Magnetic and Morphological Properties in Magnetic Multilayers,” IEEE Trans. Magn., V. 34, No. 4, July 1998, pp.840-842.
• J. Shi, T. Zhu, M. Durlam, E. Chen, S. Tehrani, Y.F. Zheng, J.G. Zhu, “End Domain States and Magnetization Reversal in Submicron Magnetic Structures,” IEEE Trans. Magn., V. 34, No. 4, July 1998, pp. 997-999.
• V. Chakarian, J.W. Freeland, Y.U. Idzerda, S. Doherty, J.G. Zhu, H.Wende, C.-C. Kao, “Directly Identifying the Order of Layer Switching in Magnetic Multilayers,” J. Vac. Sci. Tech., Amer. Vac. Soc., A, 16, (3), May-June 1998, pp. 1355-1358.
• J.-G. Zhu, D. J. O'Connor, "Recording Limitations for SAL/MR and Dual-Stripe Heads, "IEEE Trans. Magn., V. 32, No.5, September 1996, pp. 3401-3403.
• J.-G. Zhu, T. Lam, H. Fang, T. Chang, H. Tong, R. Rottmayer, "Characteristics of Narrow Track Recording in Thin Film Media," IEEE Trans. Magn., V. 33, No. 1 September 1996, pp. 984-989.
• T.C. Arnoldussen, C. Vo, M. Burleson, J.-G. Zhu, "A Simple Recording Head Write Field Rise Time Measurement," IEEE Trans. Magn., V.32, No. 5., September 1996, pp. 3521-3523.
• T. Chang, M. Salo, H. Fang, M. Madison, J.-G. Zhu, T. Arnoldussen, "Affects of Skew Angle on the Written-in Base Line Shift (BLS) Signal at High Track Density," IEEE Trans. Magn., V.32, No. 5, September 1996, pp. 3395-3397.
• Y. F. Zheng, J.-G. Zhu, "Micromagnetics of Spin Valve Memory Cells,” IEEE Trans. Magn., V. 32, No. 5, September 1996, pp. 4237-4239.
• H. Fang, J.-G. Zhu, "Switching Speed of Longitudinal Thin Film Recording Media,” IEEE Trans. Magn., V. 32, No. 5, September 1996, pp.3584-3586.
• T. Lam, J.-G. Zhu, "Recording Performance of Submicron Track Width Thin Film Heads", J. Appl. Phys., V. 79, No. 8, April 1996, pp.5645-5647.
• J.-G. Zhu, X.G. Ye, S. Yuan, H.-C. Tong, R. Rottmayer, "Micromagnetics of Dual Spin Valve GMR Heads,” J. Appl. Phys., V. 79, No. 8, April 1996, pp. 5886-5888.
• J.-G. Zhu, D. O'Connor, "Impact of Microstructure on Stability of Permanent Magnet Biased Magneto-Resistive Heads,” IEEE Trans. Magn., V. 32, No. 1, January 1996, pp. 54-60.
• J.-G. Zhu, T. Lam, Y. Luo, X.-G. Ye, "Nonlinear Partial Erasure in Longitudinal Thin Film Media,” J. Appl. Phys., V. 79, No. 8, April 1996, pp. 4906-4908.
• J. Ding, J.-G. Zhu, "In-situ Observation of Domain Reversal in Patterned NiFe Elements Exchange Biased by CoCrPt or NiO Films,” J. Appl. Phys., V. 79, No. 8, April 1996, pp. 5892-5894.
• J.-G. Zhu, "Micromagnetic Modeling: Theory and Applications in Magnetic Thin Films,” MRS Bulletin, V. 20, No.10, October 1995, p. 49.
• Y. Luo, T. Lam, and J.-G. Zhu, H.C. Tong, R. Rottmayer, "MFM Study of Submicron Track Width Recording in Thin Film Media,” J. Appl. Phys., V. 79, No. 8, April 1996, pp. 4909-4911.
• E. Dahlberg, J.-G. Zhu, "Micromagnetic Modeling and Magnetic Microscopy,” Physics Today, V. 48, No. 4, April 1995, pp. 34-40.
• R. Rottmayer, J.-G. Zhu, "A New Design For An Ultra-High Density Magnetic Recording Head Using A GMR Sensor In the CPP Mode,” IEEE Trans. Magn., V. 31, No.6, November 1995, pp. 2597-2599.
• Lu, J.-G. Zhu, "Micromagnetic Analysis of Permanent Magnet Biased Narrow Track Spin-Valve GMR Heads,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 2615-2617.
• T. Suzuki, J.-G. Zhu, D. Speliotis, "Micromagnetic Study of Ba-Ferrite Longitudinal Thin Film Media,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 2746-2748.
• J.-G. Zhu, X.G.Ye, “ Impact of Medium Noise Correlation on Various Partial Response Channels,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 3087-3089.
• J. Gadbois, J.-G. Zhu, "Effect of Edge Roughness in Nano-Scale Magnetic Bar Switching,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 3802-3804.
• J. Ding, J.-G. Zhu, "Experimental Study on Track Edge Recording Characteristics of Bicrystal Thin Film Media,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp.2827-2829.
• T. Lam, J.-G. Zhu, "Phase Dependence of Track Edge Noise in MR Head Written Overlapping Tracks,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 3111-3113.
• Y. Luo, T. Lam, J.-G. Zhu, "Density and Phase Dependence of Edge Erase Band in MR/Thin Film Head Recording,” IEEE Trans. Magn., V. 31, No. 6, November 1995, pp. 3105-3107.
• J.-G. Zhu, H. Wang, "Noise Characteristics of Interacting Transition in Longitudinal Thin Film Media,” IEEE Trans. Magn., V. 31, No. 2, March 1995, pp. 1065-1070.
• J.-G. Zhu, Y. Luo, J. Ding, X.-G. Ye, E. Louis, "MFM Study of Edge Overwrite in Perpendicular Thin Film Recording Media,” IEEE Trans. Magn., V. 30, No. 5, September 1994, pp. 2755-2757.
• J.-G. Zhu, H. Wang, T. Arnoldussen, "Micromagnetic Modeling and Experimental Study of Transition Noise Correlation in Thin Film Medium," J. Appl. Phys., V. 75, No. 5, May 1994, pp.5762-5764.
• T. Chang, J.-G. Zhu, " Angular dependence measurement of individual barium ferrite recording particles near the single domain size," J. Appl. Phys., V. 75, No. 10, May 1994, pp. 5553-5555.
• X.-G. Ye, J.-G. Zhu, "Modeling of thin film media with advanced microstructure for ultra-high density recording," J. Appl. Phys., V. 75, No.10, May 1994, pp. 6135-6137.
• T. Min, J.-G. Zhu, "Bicrystal advanced thin film media for high density recording," J. of Appl. Phys., V. 75, No. 10, May 1994, pp.6129-6131.
• K. Sin, J. Ding, P. Glijer, J. Sivertsen, J. Judy, J.-G. Zhu, "Comparison of reproduce signal and noise of conventional and keepered CoCrTa/Cr thin film media," J. Appl. Phys., V. 75, No.10, May 1994, pp. 6150-6152.
• Y. Guo, J.-G. Zhu, "Study of SAL-Biased MR Heads With Patterned Permanent Magnet Bias,” IEEE Trans. Magn., V. 30, No. 6, November 1994, pp. 3861-3863.
• Y. Luo, J.-G. Zhu, "Switching Field Characteristics of Individual Iron Particles by MFM,” IEEE Trans. Magn., V. 30, No.5, Sept. 1994, p.4081.
• J.-G Zhu, Y. Luo, J. Ding, "Magnetic Force Microscopy Study of Edge Overwrite Characteristics in Thin Film Media,” IEEE Trans. Magn., V. 30, No. 6, November 1994, pp. 4242-4244.
• J. Ding, J.-G. Zhu, "Microstructure and Recording Properties of Bicrystal Disks with GaAs Substrates,” IEEE Trans. Magn., V. 30, No. 6, June 1994, pp. 3978-3980.
• X.-G. Ye, T. Lam, J.-G. Zhu, "Experimental and Micromagnetic Study of Track Edge Noise Reduction Effect in Multilayer Thin Film Media", IEEE Trans. Magn., V. 30, No. 6, November 1994, pp. 3999-4001.
• T. Lam, J.-G. Zhu, T. C. Arnoldussen, "Experimental Study of Track Edge Noise Distribution in Narrow Track Recording,” IEEE Trans. Magn., V. 30, No. 6. June 1994, pp. 4245-4247.
• J. Loven, Y. Guo, K. Sin, J. Judy, J.-G .Zhu, "Modeling Study of Isolated Read-Back Pulses from Keepered Longitudinal Thin Film Media Using the Boundary Element Method,” IEEE Trans. Magn., V. 30, No. 6, November 1994, pp. 4275-4277.
• T. Chang, J.-G .Zhu, "Angular dependence measurement of individual barium ferrite recording particles near the single domain size," J. Appl. Phys., V. 75, No. 10, May 1994, pp. 5553-5555.
• T. Min, J.-G. Zhu, "Bicrystal advanced thin film media for high density recording," J. Appl. Phys., V. 75, No. 10, May 1994, pp.6129-6131.
• T. Arnoldussen, J.-G. Zhu, "Effect of recorded transition shape on spatial noise distributions and correlations," J. Appl. Phys., V. 75, No. 10, May 1994, pp. 6773-6775.
• J.-G. Zhu, X.-G. Ye, "Narrow Track Recording in Perpendicular Thin Film Media,” IEEE Trans. Magn., V. 29, No. 6, April 1993, pp. 3736-3738.
• K. Sin, J. Ding, P. Glijer, J.M. Sivertsen, J.H. Judy, J.-G Zhu, "Comparison of Reproduce Signal and Noise of Conventional and Keepered CoCrTa/Cr Thin Film Media," J. Appl. Phys., V.75, No. 10, May 1994, pp. 6150-6152.
• X.-G. Ye, J.-G. Zhu, "Modeling of thin film media with advanced microstructures for ultra-high density recording," J. Appl. Phys. V. 75, No. 10, May 1994, pp. 6135-6137.
• T. Chang, J.-G. Zhu, "Effects of Non-Uniform Substitution on Reversal Process of Individual Barium Ferrite Recording Particles," IEEE Trans. Magn., (1993), V. 29, p. 3619.
• Y. Guo, J.-G. Zhu, "Micromagnetic study of narrow track orthogonal GMR heads,” J. Appl. Phys., V. 75, No. 10, May 1994, pp. 6388-6390.
• T. Min, J.-G. Zhu, "Grain Height Fluctuation and Medium Noise in Longitudinal Thin Film Recording Media," IEEE Trans. Magn., (1993), V. 29, p. 3706.
• X.-G. Ye, J.-G. Zhu, T. Arnoldussen, "Track Edge Overwrite and Easy Axis Orientation in Narrow Track Recording," IEEE Trans. Magn., V., 29, 3978(1993).
• H. Takano, T.T. Lam, J.-G. Zhu, J.H. Judy, "Affect of Orientation Ratio on the Recording Characteristics of Longitudinal Thin Film Media," IEEE Trans. Magn., V. 29, No. 6, November 1993, pp. 3709-3711.
• M.J. Vos, R.L. Brott, J.-G. Zhu, L. W. Carlson, "Computed Hysteresis Behavior and Interaction Effects in Spheroidal Particle Assemblies," IEEE Trans. Magn., V. 29, No. 6, November 1993, pp. 3652-3657.
• J.-G. Zhu, "Transition Noise in Longitudinal Thin Film Media,” IEEE Trans. Magn., V. 29, November 1993, p. 195.
• T. Min, J.-G. Zhu "Effect of grain size dispersion on noise in longitudinal thin film recording media," J. Appl. Phys., V. 73, No. 10, May 1993, pp. 5548-5550.
• T. Chang, J.-G. Zhu, J.H. Judy,"Method for investigating the reversal properties of isolated barium ferrite fine particles utilizing magnetic force microscopy (MFM)," J. Appl. Phys., V. 73, No. 10, May 1993, pp.6716-6718.
• J.-G. Zhu, X.-G. Ye, T. C. Arnoldussen, "Effect of In-Plane Easy Axis Orientation in Narrow Track Recording,” IEEE Trans. Magn., V. 29, (1993), p. 324.
• J. Moon, J.-G. Zhu, “Nonlinearity in Thin Film Recording Media,” IEEE Trans. Magn., V. 29, (1993), p. 177
• J.-G. Zhu, "Coercivity Angular Dependence in Longitudinal Thin Film Media", J.M.M., 109, (1992), p.367-374.
• Y. Hsu, J.-G. Zhu, J. M. Sivertsen, J. H. Judy,"Mechanism of reverse dc erase noise in thin film media," J.M.M., 114, (1992), pp. 207-212.
• J.-G. Zhu, "Modeling of Multilayer Thin Film Recording Media,” IEEE Trans. Magn., V. 28, No. 5, September 1992, pp. 3267-3269.
• X.-G. Ye, J.-G. Zhu, "Micromagnetic Study of Magnetization Process in Bicrystal Thin Films,” IEEE Trans. Magn., V. 28, No. 5, September 1992, pp. 3087-3089.
• Y.-M. Guo, J.-G. Zhu, "Transitions Between Intra-Wall Structures in Permalloy Thin Films,” IEEE Trans. Magn., V. 28, (1992), p. 2919.
• J.-G. Zhu, X.-G. Ye, T.C. Arnoldussen, "Side Writing Phenomena in Narrow Track Recording,” IEEE Trans. Magn., V. 28, No. 5, September 1992, pp. 2716-2718.
• Y.-M. Hsu, J.-G. Zhu, J. Sivertsen, J. Judy, "Magnetization Cross-track Correlations and Transition Noise of Longitudinal Thin Film Media,” IEEE Trans. Magn., V. 28, No. 5, September 1992, pp. 3273-3275.
• T. Chang, M. Lagerquist, J.-G. Zhu, J.H. Judy, "Deconvolution of Magnetic Force Images by Fourier Analysis,” IEEE Trans. Magn., V. 28, No. 5, September 1992, pp. 3138-3140.
• J.-G. Zhu, "Noise of Interacting Transitions in Thin Film Recording Media,” IEEE Trans. Magn., V. 27, No. 6, November 1991, pp. 5040-5042.
• J.-G. Zhu, H. N. Bertram, “Magnetization Structures in Thin Film Recording Media,”(Invited Paper), IEEE Trans. Magn., V. 27, No. 4, July 1991, pp. 3553-3562.
• J. Moon, J.-G. Zhu, "Nonlinear Effects of Transition Broadening,” IEEE Trans. Magn., 27, 4831(1991).
• T. Min, J.-G. Zhu, J. Judy, "Effects of Interlayer Magnetic Interactions in Multilayerd CoCrTa/Cr Thin Film Media,” IEEE Trans. Magn., V. 27, No.6, November 1991, pp. 5058-5060.
• H.N. Bertram, J.-G. Zhu, "Simulations of Torque Measurements and Noise in Thin Film Magnetic Recording Media,” IEEE Trans. Magn., V. 27, (1991) p. 5043.
• I.A. Beardsley, J.-G. Zhu, "Significance of dM Measurements in Thin Film Media,” IEEE Trans. Magn.,V. 27, No. 6, November 1991, pp. 5037-5039.
• J.-G. Zhu, H. N. Bertram, "Magnetization Reversal and Domain Structures in Thin Film Recording Media,” J.Appl. Phys., 69, 6084 (1991).
• J.-G. Zhu, H. N. Bertram, "Self-organized Behavior in Thin Film Recording Media,” J. Appl. Phys, 69, (8), April 1991, pp. 4709 4711.
• J.-G. Zhu ,H. N. Bertram, "Study of Noise Sources in Thin Film Media,” IEEE Trans. Magn., V. 26, No. 5, September 1990, pp. 2140-2142.
• I. A. Beardsley , J.-G. Zhu, "DC-erase Edge Noise Simulations in Thin Film Media,” J. Appl. Phys., V. 67, (9), May 1990, 5352-5354.
• J.-G. Zhu, H. N. Bertram, "Magnetization Reversal in CoCr Perpendicular Thin Films,” J. Appl. Phys., V. 66, (1989) p. 1291.
• J.-G. Zhu, H. N. Bertram, "Recording and Transition Noise Simulations in Thin Film Media,” IEEE Trans. Magn., V. 24, No. 6, (1988), pp. 2706-2708.
• J.-G. Zhu, H. N. Bertram , "Micromagnetic Studies of Thin Metallic Films,” (Invited), J. Appl. Phys., 63, (8), April 1988, pp. 3248-3253.
• J.-G. Zhu, H. N. Bertram , "Computer Simulation of Nonlinear Bit Shift in Perpendicular Recording,” IEEE Trans. Magn., V. 23, No. 5, September 1987, pp. 2862-2864.
• J.-G. Zhu, H. N. Bertram, "Comparison of Thin Film and Ring Heads for Perpendicular Recording,” IEEE Trans. Magn., V. 23, No. 1, January 1987, pp. 177-179.
• J.-G. Zhu, H. N. Bertram, "Computer Modeling of the Write Process in Perpendicular Recording,” IEEE Trans. Magn.,V. 22, No. 5, September 1986, pp. 379-381.

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Copyright 2006 Jimmy Zhu