Effect of Non-Magnetic Dilutions on the Blocking temperature of Exchange Biased Systems
Effect of Non-Magnetic Dilutions on the Blocking temperature of Exchange Biased Systems
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DOI：
10.1109/tmag.2011.2158207
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发表时间：
2011-09
影响因子：
2.1
通讯作者：
G. Vallejo-Fernandez;K. O’Grady
中科院分区：
文献类型：
--
作者：
G. Vallejo-Fernandez;K. O’Grady
本文用强畴壁钉扎模型解释了非磁性杂质对交换偏置体系的中位阻断温度的影响。虽然非磁性杂质的引入会导致在中等温度下环路位移的测量值增加，但与未稀释系统相比，此类系统的阻塞温度总是报告为降低。我们发现，它也可以观察到的中值阻断温度的增强稀释的系统取决于反铁磁层的微观结构。
In this paper, we use a strong domain wall pinning model to explain the effect of non-magnetic impurities on the median blocking temperature of exchange biased systems. Although the introduction of non-magnetic impurities can lead to an increase in the measured value of the loop shift at moderate temperatures, the blocking temperature of such systems is always reported to decrease when compared to that of non-diluted systems. We find that it is also possible to observe an enhancement of the median blocking temperature for diluted systems depending on the microstructure of the antiferromagnetic layer.