Determination of first and second magnetic anisotropy constants of magnetic recording media

Yasushi Endo, Osamu Kitakami, Satoshi Okamoto, Yutaka Shimada

研究成果: Article査読

32 被引用数 (Scopus)

抄録

We propose a simple method to evaluate the first and second magnetic anisotropy constants of high-density magnetic recording media with their easy axis in the film plane. By measuring the magnetization curve along the film normal, uniaxial anisotropy constants K1 and K2 can be determined simultaneously. The present method has been applied to (11·0) oriented CoCrPtTa hard disk media. The measured anisotropy constants are presented along with their temperature dependence. We also point out serious shortcomings of the currently used evaluation methods, such as the rotational hysteresis method and the singular point detection technique, which usually overestimate the magnetic anisotropy constant.

本文言語English
ページ(範囲)1689-1691
ページ数3
ジャーナルApplied Physics Letters
77
11
DOI
出版ステータスPublished - 2000 9 11

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「Determination of first and second magnetic anisotropy constants of magnetic recording media」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル