Modeling the effect of interactions in granular magnetic films

被引：14

作者：

Liu, AD ^{[1
]}

Bertram, HN ^{[1
]}

机构：

[1] Univ Calif San Diego, Ctr Magnet Recording Res, La Jolla, CA 92093 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 05期

关键词：

D O I：

10.1063/1.1340601

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of interactions on the blocking temperature of granular magnetic films is modeled using a variable time step Monte Carlo method. Both magnetostatic and exchange interactions are considered in the calculation of field cooled magnetization curves. Cubic grains with 28 Angstrom side lengths are randomly packed within a larger cubic volume. Each grain has a random crystalline easy axis. For the parameters simulated, magnetostatic interactions do not have an effect on the blocking temperature, and exchange interactions cause average blocking temperatures to increase. (C) 2001 American Institute of Physics.

引用

页码：2861 / 2867

页数：7

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