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首页> 外文期刊>Physica, B. Condensed Matter >Nature of magnetic impurity induced superparamagnetism and anomalous Hall effect in β-FeSi_2 single crystals
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Nature of magnetic impurity induced superparamagnetism and anomalous Hall effect in β-FeSi_2 single crystals

机译：β-FeSi_2单晶中磁杂质诱导的超顺磁性和霍尔效应的异常性质

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摘要

The magnetic properties of β-FeSi_2 single crystals were investigated using magnetization and anomalous Hall effect measurements. These measurements clearly show the appearance of superparamagnetism, the origin of which is attributed to defect-induced magnetic aggregates. Unlike previous reports, based on our combined analysis using magnetization and the anomalous Hall effect, we found that two kinds of aggregates, which are magnetically distinct, exist in our samples. Among the two types found, one gives an anomalous Hall term, which follows a side-jump mechanism while the other is a completely new kind, suggesting that magnetic properties of β-FeSi _2 are very unconventional. The sizes of the aggregates were estimated from our experimental data.
机译：β-FeSi_2单晶的磁性能使用磁化强度和异常霍尔效应测量进行了研究。这些测量清楚地表明了超顺磁性的出现，其起源归因于缺陷引起的磁性聚集体。与以前的报告不同，基于我们使用磁化强度和霍尔效应的综合分析，我们发现样本中存在两种磁性不同的聚集体。在发现的两种类型中，一种给出了异常的霍尔项，其遵循侧跳机理，而另一种则是全新的，这表明β-FeSi_2的磁性非常不常规。骨料的大小是根据我们的实验数据估算得出的。

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