Magnetization Reversal Mechanism Evaluated by Rotational Hysteresis Loss Analysis for the Thin Film Media

Migaku Takahashi; T. Shimatsu

doi:10.1109/20.179785

Magnetization Reversal Mechanism Evaluated by Rotational Hysteresis Loss Analysis for the Thin Film Media

Migaku Takahashi, T. Shimatsu

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

In the present study, rotational hysteresis loss analysis is carried out for cocrra, and CoCrPt thin film media to evaluate the influence of microstructure on coercive force through the measurement of magnetic anisotropy. In each media, the magnitudes of defined as a magnetic field where rotational hysteresis loss diminishes remain almost a constant value of the values of coercive force. With increasing coercive force, the of coercive force gradually becomes smaller than that of switching field of magnetization by torque analysis. Through the analysis and it is suggested that the coercive force In each media is strongly dependent on the degree of intergranular exchange coupling and/or interactions. While, in and CoCrPt coercive force has a dependence on rotational hysteresis integral however, in CoCrTa films, any correlation between was not observed.

Original language	English
Pages (from-to)	3285-3287
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	28
Issue number	5
DOIs	https://doi.org/10.1109/20.179785
Publication status	Published - 1992 Sep

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Magnetization Reversal Mechanism Evaluated by Rotational Hysteresis Loss Analysis for the Thin Film Media",

abstract = "In the present study, rotational hysteresis loss analysis is carried out for cocrra, and CoCrPt thin film media to evaluate the influence of microstructure on coercive force through the measurement of magnetic anisotropy. In each media, the magnitudes of defined as a magnetic field where rotational hysteresis loss diminishes remain almost a constant value of the values of coercive force. With increasing coercive force, the of coercive force gradually becomes smaller than that of switching field of magnetization by torque analysis. Through the analysis and it is suggested that the coercive force In each media is strongly dependent on the degree of intergranular exchange coupling and/or interactions. While, in and CoCrPt coercive force has a dependence on rotational hysteresis integral however, in CoCrTa films, any correlation between was not observed.",

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AU - Takahashi, Migaku

AU - Shimatsu, T.

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AB - In the present study, rotational hysteresis loss analysis is carried out for cocrra, and CoCrPt thin film media to evaluate the influence of microstructure on coercive force through the measurement of magnetic anisotropy. In each media, the magnitudes of defined as a magnetic field where rotational hysteresis loss diminishes remain almost a constant value of the values of coercive force. With increasing coercive force, the of coercive force gradually becomes smaller than that of switching field of magnetization by torque analysis. Through the analysis and it is suggested that the coercive force In each media is strongly dependent on the degree of intergranular exchange coupling and/or interactions. While, in and CoCrPt coercive force has a dependence on rotational hysteresis integral however, in CoCrTa films, any correlation between was not observed.

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