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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Igarashi, M. Akagi, F. Nakamura, A. Ikekame, H. Yoshida, K. Sugita, Y. |
| Copyright Year | 1965 |
| Abstract | Magnetization-switching behavior was investigated in high-data-rate hard-disk media through micro-magnetic simulation to clarify the distinction between the gyromagnetics dominated scheme and the thermodynamics dominated scheme in the dynamics of the switching. It was found that the pulse-shape dependence of remanence coercivity H/sub cr/ and the anisotropy field H/sub k/ dependence of the switching-speed are caused by the gyromagnetic effect. The thermodynamic effect plays a main role in the time-dependent H/sub cr/ when the pulse width is over 1 ns. On the other hand H/sub cr/ in the thermodynamic region decreases linearly with respect to the logarithmic pulse width. The demagnetizing field from the write bubble causes H/sub cr/ to increase with the reverse DC erase (RDC) method in 10 or fewer "reptations". |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2148 |
| Ending Page | 2150 |
| Page Count | 3 |
| File Size | 63024 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 36 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Computer simulation Magnetization Magnetic switching Thermodynamics Gyromagnetism Space vector pulse width modulation Magnetic anisotropy Perpendicular magnetic anisotropy Computational modeling Remanence |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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