TY - GEN
T1 - Simulations of magnetic recording in CGC perpendicular media with random pinning sites
AU - Goodman, A. M.
AU - Greaves, S. J.
AU - Sonobe, Y.
AU - Muraoka, H.
AU - Nakamura, Y.
N1 - Publisher Copyright:
©2002 IEEE.
PY - 2002
Y1 - 2002
N2 - Coupled granular-continuous (CGC) perpendicular media have been shown to improve thermal stability without compromising SNR. Furthermore, simulations have indicated how CGC media might circumvent conventional limits to areal density by providing a balance of interactions across the bit length that simultaneously increases activation volume and smoothes bit transition irregularity. However, performing a meaningful analysis of media recording performance using the model was hindered by the non-random nature of the irregularity used to demonstrate the effect. We analyze tracks written in CGC media consisting of grains having a random anisotropy constant, Ku, using a 3D micromagnetic model. The thickness of the granular layer, g, and continuous layer, c, are varied whilst maintaining a constant media thickness.
AB - Coupled granular-continuous (CGC) perpendicular media have been shown to improve thermal stability without compromising SNR. Furthermore, simulations have indicated how CGC media might circumvent conventional limits to areal density by providing a balance of interactions across the bit length that simultaneously increases activation volume and smoothes bit transition irregularity. However, performing a meaningful analysis of media recording performance using the model was hindered by the non-random nature of the irregularity used to demonstrate the effect. We analyze tracks written in CGC media consisting of grains having a random anisotropy constant, Ku, using a 3D micromagnetic model. The thickness of the granular layer, g, and continuous layer, c, are varied whilst maintaining a constant media thickness.
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U2 - 10.1109/INTMAG.2002.1001162
DO - 10.1109/INTMAG.2002.1001162
M3 - Conference contribution
AN - SCOPUS:85017244806
T3 - INTERMAG Europe 2002 - IEEE International Magnetics Conference
BT - INTERMAG Europe 2002 - IEEE International Magnetics Conference
A2 - Fidler, J.
A2 - Hillebrands, B.
A2 - Ross, C.
A2 - Weller, D.
A2 - Folks, L.
A2 - Hill, E.
A2 - Vazquez Villalabeitia, M.
A2 - Bain, J. A.
A2 - De Boeck, Jo
A2 - Wood, R.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Y2 - 28 April 2002 through 2 May 2002
ER -