Characterization to realize CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity

Shin Saito; Fumikazu Hoshi; Norikazu Itagaki; Migaku Takahashi

doi:10.1063/1.1557818

Characterization to realize CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity

Shin Saito, Fumikazu Hoshi, Norikazu Itagaki, Migaku Takahashi

ENG - Electronic Engineering

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

5 Citations (Scopus)

Abstract

The systematic magnetic characterization for realization of CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity was discussed. It was found that the with decreasing measuring temperature from R. T. t 4.2 K, normalized coercivity H_c/H_k^grain, increased for the medium strongly influenced by thermal agitation. The analysis showed that an exchange decoupled medium tends to show a large positive H_n/H_k^grain, which resulted in a significant decrease of squareness.

Original language	English
Pages (from-to)	6775-6777
Number of pages	3
Journal	Journal of Applied Physics
Volume	93
Issue number	10 2
DOIs	https://doi.org/10.1063/1.1557818
Publication status	Published - 2003 May 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "The systematic magnetic characterization for realization of CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity was discussed. It was found that the with decreasing measuring temperature from R. T. t 4.2 K, normalized coercivity Hc/Hkgrain, increased for the medium strongly influenced by thermal agitation. The analysis showed that an exchange decoupled medium tends to show a large positive Hn/Hkgrain, which resulted in a significant decrease of squareness.",

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AU - Saito, Shin

AU - Hoshi, Fumikazu

AU - Itagaki, Norikazu

AU - Takahashi, Migaku

PY - 2003/5/15

Y1 - 2003/5/15

N2 - The systematic magnetic characterization for realization of CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity was discussed. It was found that the with decreasing measuring temperature from R. T. t 4.2 K, normalized coercivity Hc/Hkgrain, increased for the medium strongly influenced by thermal agitation. The analysis showed that an exchange decoupled medium tends to show a large positive Hn/Hkgrain, which resulted in a significant decrease of squareness.

AB - The systematic magnetic characterization for realization of CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity was discussed. It was found that the with decreasing measuring temperature from R. T. t 4.2 K, normalized coercivity Hc/Hkgrain, increased for the medium strongly influenced by thermal agitation. The analysis showed that an exchange decoupled medium tends to show a large positive Hn/Hkgrain, which resulted in a significant decrease of squareness.

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ER -

Characterization to realize CoCr-based perpendicular magnetic recording media with high squareness and normalized coercivity

Abstract

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