Study of the origin of orientation ratio in high-density longitudinal magnetic recording media

被引：15

作者：

Ajan, A ^{[1
]}

Acharya, BR ^{[1
]}

Abarra, EN ^{[1
]}

Okamoto, I ^{[1
]}

机构：

[1] Fujitsu Labs Ltd, Storage Syst Labs, Atsugi, Kanagawa 2430197, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 04期

关键词：

longitudinal magnetic recording media; mechanical texturing; orientation ratio;

D O I：

10.1109/20.950885

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：

A study on the origin of orientation ratio (O.R.) in high-density recording media on mechanically textured substrates is reported. C-axis distribution of Co grains in textured case observed using high resolution transmission electron microscopy (HRTEM) images shows its preferred orientation along the circumferential (along the groove) direction. The asymmetrical easy axis distribution is seen by maximum torque observed in different directions along the plane of the film. Diffraction patterns from several individual grains of the Cr under-layer are analyzed and indicated the preference of Cr < 110 > along the circumferential direction. This could be the reason for C-axis of Co grains to show the preferred anisotropy along circumferential direction.

引用

页码：1508 / 1511

页数：4