Optimum design rule of hysteresis loop for ultrahigh density recording in sigle layered perpendicular media

Micromagnetic studies have been performed to find optimum shape of hysteresis loop in a single-layered perpendicular medium for ultrahigh density recording. A good index that was inversely proportional to signal-to-noise ratio (SNR) was developed. By using this index, we found the optimum loop shape should have terms of the ratio of nucleation field to coercivity within -0.4 to -0.6, the loop slope within 2 to 4, and the ratio of grain thickness to grain diameter larger than 2.5.
Publisher
IEEE-Inst Electrical Electronics Engineers Inc
Issue Date
2002-03
Language
ENG
Citation

IEEE TRANSACTIONS ON MAGNETICS, v.38, no.2, pp.801 - 804

ISSN
0018-9464
URI
http://hdl.handle.net/10203/82417
Appears in Collection
MS-Journal Papers(저널논문)
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