Mechanical demagnetization at head disk interface of perpendicular recording

IEEE Transactions on Magnetics

Volumn 45, Issue 2, 2009, Pages 893-898

  Xu, Junguo ^a   Furukawa, Masaru ^a   Nakamura, Atsushi ^b   Honda, Masanobu ^c  

^a HITACHI LTD   (Japan)

^b Central Research Laboratory   (Japan)

^c SAN JOSE RESEARCH CENTER   (United States)

Author keywords

Adjacent track interference; Demagnetization; Head disk interface; Perpendicular recording

Indexed keywords

COERCIVE FORCE; DEMAGNETIZATION; MAGNETIC DISK STORAGE; MAGNETIC FIELDS; MAGNETIC RECORDING; TRANSMISSION ELECTRON MICROSCOPY; TRANSMISSIONS;

ADJACENT TRACK INTERFERENCES; HEAD DISK INTERFACE; HEXAGONAL LATTICE; MAGNETIC COERCIVITIES; MICROMAGNETIC SIMULATIONS; PERPENDICULAR RECORDING; SECTION ANALYSIS; TRANSMISSION ELECTRON;

MAGNETIC ANISOTROPY;

EID: 60449095587     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2008.2010670     Document Type: Article

References (14)

1. Y. Hosoe, I. Tamai, K. Tanahashi, Y. Takahashi, T. Yamamoto, T. Kanbe, and Y. Yajima, "Experimental study of thermal decay in high-density magnetic recording media," IEEE Trans. Magn., vol. 33, pp. 3028-3030, 1997.
2. Y. Hosoe, T. Kanbe, K. Tanahashi, I. Tamai, S. Matsunuma, and Y. Takahashi, "Thermal effects in thin film magnetic recording media," IEEE Trans. Magn., vol. 34, pp. 1528-1530, 1998.
3. S. Iwasaki et al, "Gbit/in2 perpendicular recording using double layer medium, and MIG head," IEEE Trans. Magn., vol. 32, p. 3795, 1996.
4. T. Osaka, Y. Yamashita, J. Sayama, T. Asahi, J. Ariake, K. Harada, and K. Ouchi, "Fabrication of SmCo5 double-layered perpendicular magnetic recording media," IEEE Trans. Magn., vol. 43, p. 2109, 2007.
5. K. Ouchi, "Recent advancements in perpendicular magnetic recording," IEEE Trans. Magn., vol. 37, pp. 1217-1222, 2001.
6. M. Suk and D. Jen, "Potential data loss due to head/disk contacts during dynamic load/unload," IEEE Trans. Magn., vol. 34, pp. 1711-1713, 1998.
7. M. Shoda and H. Tani, "Catastrophic damage of magnetic recording disk caused by slider-disk impact during loading/unloading," IEEE Trans. Magn., vol. 39, pp. 893-895, 2003.
8. A. M. Allen and D. B. Bogy, "Effects of shock on the head-disk interface," IEEE Trans. Magn., vol. 32, pp. 3717-3719, 1996.
9. M. Furukawa, J. Xu, Y. Shimizu, and Y. Kato, "Scratch induced demagnetization of perpendicular recording," in Proc. Inter-mag 2008, Madrid, Spain, May 4-8, 2008, BB-04,.
10. M. Furukawa, J. Xu, Y. Shimizu, and Y. Kato, "Mechanism study of scratch induced demagnetization for perpendicular magnetic disks," in Proc,. 18th Annu. ASME Conf. Inf. Storage and Procession Syst., Santa Clara, USA, Jun. 16-17, 2008, THAN-A1.
11. W. Jiang, G. Khera, and R. Wood, "Cross-track noise profile measurement for adjacent-track interference study and write-current optimization in perpendicular recording," J. Appl. Phys., vol. 93, pp. 6754-6756, 2003.
12. J. Feng, "Long-range erasure of nearby recorded tracks," IEEE Trans. Magn., vol. 40, pp. 2588-2590, 2004.
13. A. Nakamura, M. Igarashi, M. Hara, and Y. Sugita, "M-H loop slope and recording properties of perpendicular media," Jpn. J. Appl. Phys., vol. 43, pp. 6052-6055, 2004.
14. M. Igarashi, M. Hara, A. Nakamura, and Y. Sugita, "Computer simulation of the thermal stability in perpendicular recording media using the thermal acceleration method," J. Magn. Mater., vol. 287, pp. 72-76, 2005.