MAGNETIC VISCOSITY AND SWITCHING FIELD DISTRIBUTION OF RECORDING MEDIA

被引:12
作者
UREN, S [1 ]
WALKER, M [1 ]
OGRADY, K [1 ]
CHANTRELL, RW [1 ]
机构
[1] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT MATH,LONDON SW7 2BZ,ENGLAND
关键词
MAGNETIC FIELDS;
D O I
10.1109/20.11609
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
The relationship between the coefficient of magnetic viscosity S and the switching field distribution (SFD) of recording media is examined. Two samples of magnetic tape have been measured and a theory devised showing the interrelationship between S and the SFD. Good agreement between theory and experiment is reported, taking into account the approximations necessary in the derivation. It has been shown that the time-dependence coefficient S can be related to the irreversible susceptibility, defined as the differential of a primary remanence curve.
引用
收藏
页码:1808 / 1810
页数:3
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