Skip to main content Accessibility help
×
Home

Fast and Slow Magnetization Processes in Magnetic Recording Media

  • J. Zhou (a1), R. Skomski (a2), S. Michalski (a3), R. D. Kirby (a4) and D. J. Sellmyer (a5)...

Abstract

Information loss due to thermal activation is a major concern in ultrahigh-density magnetic recording media. The usually considered mechanism is thermally activated magnetization reversal over micromagnetic energy barriers. However, micromagnetic approaches ignore local anisotropy fluctuations, which translate into a time-dependent reduction of the remanent magnetization. The effect is negligibly small in macroscopic magnets but becomes important on a scale of a few nanometers.

Copyright

References

Hide All
[1] Weller, D. and Moser, A., IEEE Trans. Magn. 35, 44234439 (1999).
[2] Sellmyer, D. J. and Skomski, R. (Eds.), “Advanced Magnetic Nanostructures”, Springer, Berlin 2005.
[4] Givord, D. and Rossignol, M. F., in: “Rare-Earth Iron Permanent Magnets”, Ed.: Coey, J. M. D., University Press, Oxford 1996, p. 218285.
[5] Victora, R. H. and Shen, X., IEEE Trans. Magn. 41, 537 (2005).
[6] Suess, D., Schrefl, T., Fähler, S., Kirschner, M., Hrkac, G., Dorfbauer, F., and Fidler, J., Appl. Phys. Lett. 87, 012504 (2005).
[7] Coey, J. M. D. and Skomski, R., Physica Scripta T 49, 315 (1993).
[8] Kittel, C., “Introduction to Solid-State Physics”, Wiley, New York 1986.
[9] Chipara, M. I., Skomski, R., and Sellmyer, D. J., J. Magn. Magn. Mater. 249, 246 (2002).
[10] Skomski, R. and Coey, J. M. D., “Permanent Magnetism”, Institute of Physics, Bristol 1999.

Keywords

Fast and Slow Magnetization Processes in Magnetic Recording Media

  • J. Zhou (a1), R. Skomski (a2), S. Michalski (a3), R. D. Kirby (a4) and D. J. Sellmyer (a5)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed