TY - JOUR
T1 - A simple analysis for magnetic behaviors of exchange-coupled granular/continuous perpendicular magnetic recording media
AU - Kitakami, Osamu
AU - Shimatsu, Takehito
AU - Muraoka, Hiroaki
PY - 2002/4/15
Y1 - 2002/4/15
N2 - We present a simple analysis for magnetic behaviors of exchange-coupled granular/continuous (CGC) perpendicular magnetic recording media. The analysis shows how the CGC media behave against a vertical external field. The slope of the magnetization curves is governed by the thickness ratio (γ) of a continuous layer tc to a granular layer tg and the domain wall energy σw of the continuous layer. The size of a magnetization reversal unit which would dominate the recording resolution and thermal stability can be easily evaluated by the present analysis.
AB - We present a simple analysis for magnetic behaviors of exchange-coupled granular/continuous (CGC) perpendicular magnetic recording media. The analysis shows how the CGC media behave against a vertical external field. The slope of the magnetization curves is governed by the thickness ratio (γ) of a continuous layer tc to a granular layer tg and the domain wall energy σw of the continuous layer. The size of a magnetization reversal unit which would dominate the recording resolution and thermal stability can be easily evaluated by the present analysis.
KW - Coupled granular/continuous film
KW - Magnetization reversal unit
KW - Perpendicular magnetic recording
KW - Shearing
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U2 - 10.1143/jjap.41.l455
DO - 10.1143/jjap.41.l455
M3 - Letter
AN - SCOPUS:0037089123
SN - 0021-4922
VL - 41
SP - L455-L457
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 4
ER -