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首页> 外文期刊>Japanese Journal of Applied Physics. Part 2, Letters & Express Letters >Spinodal Decomposition under Layer by Layer Growth Condition and High Curie Temperature Quasi-One-Dimensional Nano-Structure in Dilute Magnetic Semiconductors
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Spinodal Decomposition under Layer by Layer Growth Condition and High Curie Temperature Quasi-One-Dimensional Nano-Structure in Dilute Magnetic Semiconductors

机译:稀磁半导体中逐层生长条件和高居里温度准一维纳米结构下的旋节线分解

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摘要

We show that spinodal decomposition under layer by layer crystal growth condition leads to characteristic quasi-one-dimensional nano-structures in dilute magnetic semiconductors (DMS). It is found that the DMS systems can form rather large clusters with highly anisotropic shape even for low concentrations. It is suggested that the blocking phenomena in the super-paramagnetism, the magnetic dipole-dipole interaction and the network of the one-dimensional structures should be considered to understand the magnetism in DMS. Based on the present simulations, we propose that the delta-doping method can be effective approach to realize high Curie temperature.
机译:我们表明在层状晶体生长条件下的节节形分解导致稀磁半导体(DMS)中的特征准一维纳米结构。发现即使对于低浓度,DMS系统也可以形成具有高度各向异性形状的相当大的簇。建议理解超顺磁性中的阻塞现象,磁偶极-偶极相互作用以及一维结构的网络,以了解DMS中的磁性。在此基础上,我们提出了δ掺杂法是实现高居里温度的有效方法。

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