Abstract
Brillouin functions were used to model the temperature dependence of magnetisation in media for heat assisted magnetic recording. Although dHk/dT was higher when Brillouin functions with J=0.5 or J=1 were used, an earlier onset of the linear reversal mode led to a drop in dHc/dT near to Tc, resulting in wider written bits. Tracks written with a higher thermal gradient were also wider when J was small and had lower SNR.
Original language | English |
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Article number | 17C505 |
Journal | Journal of Applied Physics |
Volume | 117 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2015 May 7 |
ASJC Scopus subject areas
- Physics and Astronomy(all)