MAGNETIC-PROPERTIES AND READ WRITE CHARACTERISTICS OF CO-CR-(PT, TA)/(CR-TI,CR) THIN-FILM MEDIA

被引：41

作者：

SHIROISHI, Y ^{[1
]}

HOSOE, Y ^{[1
]}

ISHIKAWA, A ^{[1
]}

YAHISA, Y ^{[1
]}

SUGITA, Y ^{[1
]}

SUZUKI, H ^{[1
]}

OHNO, T ^{[1
]}

OHURA, M ^{[1
]}

机构：

[1] HITACHI LTD,ODAWARA WORKS,ODAWARA,KANAGAWA 256,JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353653

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Cr-Ti underlayer is found to enhance the in-plane coercive forces of Co-Cr-Pt and Co-Cr-Ta films; the maximum coercive force was 3.5 kOe for (CoCr0.15)0.84Pt0.16/CrTi0.2. The crystallites of Cr-Ti grow in a more highly oriented and uniform manner than ones of Cr, and their lattice spacings are closer to those of Co alloys than Cr, improving the epitaxial growth of Co-alloy crystallites with c-axis in-plane oriented components on the Cr-Ti underlayer. The crystalline anisotropy constant of Co-Cr-Pt with a high Pt concentration is found by torque measurement to be larger than that of Co-Cr-Ta. These can produce extremely high coercive forces in Co-Cr-Pt/Cr-Ti. The C/Co-Cr-Pt/Cr-Ti thin film media with high coercive forces show excellent read/write characteristics; the linear densities at 50% signal drop are very high, 175 and 101 kFCI, for the C/Co-Cr-Pt/Cr-Ti media at head-to-magnetic layer spacings of 0.01 and 0.07 mum.

引用

页码：5569 / 5571

页数：3

共 9 条

[1] MAGNETIC-PROPERTIES AND LONGITUDINAL RECORDING PERFORMANCE OF CORROSION-RESISTANT ALLOY-FILMS [J].