Micromagnetic predictions for thermally assisted reversal over long time scales
Micromagnetic predictions for thermally assisted reversal over long time scales
复制标题
长时间尺度热辅助逆转的微磁预测
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
R. Victora
中科院分区：
文献类型：
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作者：
Jianhua Xue;R. Victora
发展了一种标度技术来预测磁性材料在长时间尺度上受热涨落影响的微磁性质。这一理论基于热激活过程的时间和温度的等效性，通过预测两种不同薄膜磁记录介质的磁滞回线来验证。与直接计算值和实验磁滞回线结果的比较表明，诸如矫顽力等重要特征的预测误差小于1%。
A scaling technique is developed to predict micromagnetic properties of magnetic materials subject to thermal fluctuations over long time scales. This theory, based on the equivalence of time and temperature for thermally activated processes, is tested by predicting hysteresis loops for two different thin film magnetic recording media. A comparison to directly calculated values and to experimental hysteresis loop results shows that important features such as the coercivity are predicted with less than 1% error.