Magnetic interaction in Co-Cr-Pt-Ta-Nb media: Utilization of micromagnetic simulation

被引：8

作者：

Akimoto, H ^{[1
]}

Okamoto, I ^{[1
]}

Shinohara, M ^{[1
]}

机构：

[1] Fujitsu Ltd, File Mem Lab, Atsugi, Kanagawa 2430197, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 04期

关键词：

micromagnetic simulation; intergranular exchange coupling; medium noise; DC demagnetized noise; CoCrPtTaNb media;

D O I：

10.1109/20.706627

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：

Difficulties exist in identifying the intergranular exchange coupling constant (h(e))via magnetic properties measurements and TEM observation of actual media. The h(e) was estimated to be 0.13 for CoCr12Pt5TaNb/CrMo and 0.115 for CoCr19Pt5TaNb/CrMo via micromagnetic simulation. The other parameters, which are the magnetostatic coupling constant (h(m)) and the grain geometry, were obtained from measuring the magnetic properties and observing the microstructure of actual media by TEM. The h(m) is 0.11 for CoCr12Pt5TaNb and 0.09 for CoCr19Pt5TaNb, The parameters were ascertained to be suitable by comparing the MFM images of the DC demagnetized state and the medium noise dependence of the linear density between the micromagnetic simulation and the experiments.

引用

页码：1597 / 1599

页数：3

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