Accumulative Magnetic Switching of Ultrahigh-Density Recording Media by Circularly Polarized Light

J. Wang, O. Hellwig, Y. K. Takahashi, R. Medapalli, S. Kasai, K. Ishioka, S. H. Wee, K. Hono, E. E. Fullerton
2016-11-14

SCID:  54.1/7f893wwq
In addition to heat-assisted magnetic recording (HAMR), all-optical switching (AOS) is an attractive technology for the next generation of ultrahigh-density, ultrafast, ultralow-power digital storage. The authors demonstrate cumulative magnetization switching in granular Fe-Pt-C due to multiple pulses of circularly polarized light. While this base process is statistical, adding a modest external magnetic field allows deterministic switching, which shows that this form of AOS can aid writing in a HAMR-like recording process.
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2016-11-14
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J. Wang
O. Hellwig
Y. K. Takahashi
R. Medapalli
S. Kasai
K. Ishioka
S. H. Wee
K. Hono
E. E. Fullerton
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