Coercivity map in perpendicular media investigated by using in situ magnetic force microscopy

被引：6
作者：
Bai, J
Saito, H
Ishio, S
机构：
[1] Akita Univ, Dept Mat Sci & Engn, Akita 0108502, Japan
[2] Akita Univ, Venture Business Lab, Akita 0108502, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2004年 / 96卷 / 10期
关键词：
D O I：
10.1063/1.1806282
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The spatial distribution of coercivities in a CoCrPt-SiO2 granular perpendicular magnetic recording medium was measured by using in situ magnetic force microscopy. The coercivity map that shows the spatial distribution of coercivities was obtained at 1 kOe intervals in the medium. The "local" coercivities within microscopic areas of less than 100 nm square were evaluated with a good reproducibility. Measuring coercivity map will become a technique for investigating the influence of the spatial distribution of coercivities on the medium noise in perpendicular recording. (C) 2004 American Institute of Physics.
引用
收藏
页码：5924 / 5926
页数：3
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