Annealing effects on recording characteristics of CoCr-alloy perpendicular magnetic recording media

被引：12

作者：

Hirayama, Y ^{[1
]}

Honda, Y ^{[1
]}

Kikukawa, A ^{[1
]}

Futamoto, M ^{[1
]}

机构：

[1] Hitachi Ltd, Cent Res Lab, Tokyo 1858601, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 09期

关键词：

D O I：

10.1063/1.372876

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Annealing effects of CoCrTa and CoCrPt perpendicular magnetic recording media have been investigated. The coercivity and the squareness increase by postannealing when the annealing temperature is higher than 450 degrees C and CoCr35/TiCr10 dual underlayer is employed. The CoCr35 underlayer suppresses Ti diffusion to the magnetic layer and provides Cr up to the magnetic layer. The signal-to-noise ratio is improved and the magnetization irregularity diameter observed by magnetic force microscopy (MFM) decreases by the postannealing treatment. (C) 2000 American Institute of Physics. [S0021-8979(00)70108-3].

引用

页码：6890 / 6892

页数：3

共 7 条

[1] EFFECT OF FILM MORPHOLOGY ON GRAIN-BOUNDARY SEGREGATION INDUCED MAGNETIC-PROPERTIES IN HEAT-TREATED COCRPT/CR FILMS [J].