NDLI: Micromagnetic study of anisotropy sources in textured longitudinal media

Content Provider	IEEE Xplore Digital Library
Author	Khanna, G. Clemens, B.M. Hong Zhou Bertram, H.N.
Copyright Year	1965
Abstract	Micromagnetic simulations were performed to determine the effects of three anisotropy sources on the orientation ratio (OR) in circumferentially-textured longitudinal recording media. Models of the Co c-axis distribution, disruption of the magnetic coupling due to the texture lines, and stress anisotropy were used to generate hysteresis loops in both parallel and perpendicular directions. Parameters were obtained from experimental measurements. Of these three anisotropy sources, a preferential alignment of the Co c-axis along the grooves produces the largest OR; disruption of the magnetic coupling yields a smaller OR value, but leads to the perpendicular loop closing outside the parallel loop. Although the stress anisotropy increases the coercivity in both directions, the OR is the smallest. A combination of these three anisotropy sources, as well as a weak intergranular exchange, leads to agreement with the experimental measurement of OR.
Sponsorship	IEEE Magnetics Society
Starting Page	1468
Ending Page	1470
Page Count	3
File Size	91203
File Format	PDF
ISSN	00189464
Volume Number	37
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Micromagnetics Anisotropic magnetoresistance Perpendicular magnetic recording Magnetic anisotropy Perpendicular magnetic anisotropy Stress Magnetostriction Magnetostatics Couplings Magnetic hysteresis
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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