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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Richter, H.J. Parker, G. Staffaroni, M. Grobis, M. Stipe, B.C. |
| Copyright Year | 1965 |
| Abstract | In conventional heat assisted magnetic recording, a thermal write assist is provided by a near field transducer which is constantly energized by a laser during writing. Here, we report experimental and theoretical data where the laser is pulsed, whereby the pulsing can be synchronous or asynchronous to the write clock. It is found that the recording performance of pulsed heat assisted recording is slightly deteriorated when compared with conventional dc operation. This is explained by the combined effect of an increased magnetic-to-thermal offset and fast freezing dynamics. The deterioration of the recording performance can be eliminated by an increase of pulsing frequency so that the inherent low-pass behavior of the thermal response of the medium removes the temperature variations that occur in the recording layer. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1 |
| Ending Page | 7 |
| Page Count | 7 |
| File Size | 1896158 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 50 |
| Issue Number | 11 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Lasers Heat-assisted magnetic recording Synchronization Writing Jitter Heating pulsed lasers Heat assisted magnetic recording (HAMR) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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