EXPERIMENTAL-VERIFICATION OF A VECTOR PREISACH MODEL

被引:6
作者
VAJDA, F [1 ]
OTI, J [1 ]
PARDAVIHORVATH, M [1 ]
DELLATORRE, E [1 ]
SWARTZENDRUBER, LJ [1 ]
BENNETT, LH [1 ]
机构
[1] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899
关键词
D O I
10.1063/1.348338
中图分类号
O59 [应用物理学];
学科分类号
摘要
A vector moving Preisach model has been developed that describes partially oriented particulate media by pseudoparticles, consisting of a distribution of several basic particles with various orientations of easy axes. The model uses switching modes calculated by a micromagnetic simulation of physical particles. In order to test this model, the angular dependence of the magnetic properties was measured by a vibrating sample magnetometer for several samples of commercial recording media that had different degrees of particle orientation. The experimental results are in good agreement with the orientation dependence of the squareness and coercivity, as predicted by the model.
引用
收藏
页码:4502 / 4504
页数:3
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