COMPOSITION EFFECTS IN HIGH-DENSITY COPTCR MEDIA

被引：28

作者：

DOERNER, MF ^{[1
]}

YOGI, T ^{[1
]}

PARKER, DS ^{[1
]}

LAMBERT, S ^{[1
]}

HERMSMEIER, B ^{[1
]}

ALLEGRANZA, OC ^{[1
]}

NGUYEN, T ^{[1
]}

机构：

[1] IBM CORP,ALMADEN RES CTR,DIV RES,SAN JOSE,CA 95120

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1993年 / 29卷 / 06期

关键词：

D O I：

10.1109/20.281263

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The optimizatioin of the CoPtCr alloy for use in high density longitudinal magnetic recording is discussed. Low noise media can be obtained with a combination of high Cr concentration (22 at.%) and high deposition temperature. The results are consistent with a Cr segregation mechanism that provides reduction of exchange coupling without the need for a voided microstructure. The Curie temperature decreases significantly at 25 at.% Cr preventing further increase in the Cr concentration. Pt is added to the alloy to increase coercivity with little effect on other recording properties.

引用

页码：3667 / 3669

页数：3

共 12 条

[1] PHYSICAL ORIGIN OF LIMITS IN THE PERFORMANCE OF THIN-FILM LONGITUDINAL RECORDING MEDIA [J].