MAGNETIC AND RECORDING CHARACTERISTICS OF BICRYSTALLINE LONGITUDINAL RECORDING MEDIUM FORMED ON AN MGO SINGLE-CRYSTAL DISK SUBSTRATE

被引：12

作者：

FUTAMOTO, M

SUZUKI, M

INABA, N

NAKAMURA, A

HONDA, Y

机构：

[1] Central Research Laboratory, Hitachi Ltd.

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 06期

关键词：

D O I：

10.1109/20.333962

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：

An epitaxial thin film growth has been applied to prepare bicrystalline CoCrPt longitudinal recording medium using an MgO(100) single crystal disk substrate. X-ray and TEM measurements have revealed that the magnetic layer has a bicrystalline structure which consists of two variant domains with their c-axes lying in-plane and perpendicular to each other. The maximum medium coercivity is observed at (2n+1)pi/4, while the minimum coercivity is observed at n pi/2 from the MgO[010] when measured along the circumferential direction, The highest signal to noise ratio, the highest linear resolution, and the best off-track performance are observed at (2n+1)pi/4 where the direction of the recording magnetic head field lies between the easy magnetization axes of the two variant domains.

引用

页码：3975 / 3977

页数：3

共 8 条

[1] THE CRYSTALLOGRAPHY AND TEXTURE OF CO-BASED THIN-FILM DEPOSITED ON CR UNDERLAYERS [J].