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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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巡游铁磁体srruo3磁性的preisach描述
Keywords: preisach模型,铁磁性材料,不可逆过程
Abstract:
？测量了巡游铁磁体srruo3的零场冷却（zfc）和加场冷却(fc)的磁化强度随温度的变化关系，以及不同温度下的磁滞回线。考虑了热涨落和自由能壁垒随温度的变化，改进了preisach模型并对测量数据进行了拟合。数值模拟再现了测量结果的变化规律，包括在不同温度下的磁滞回线和在不同外磁场下的zfc和fc磁化强度曲线等。对拟合出的巴克豪森跳跃谱进行了讨论。
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