Influence of interface termination on the magneto-Seebeck effect in MgO based tunnel junctions

被引：16

作者：

Czerner, Michael ^{[1
]}

Heiliger, Christian ^{[1
]}

机构：

[1] Univ Giessen, Phys Inst 1, Giessen, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期

关键词：

D O I：

10.1063/1.3675987

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

On an ab initio level, we investigate the recently observed magneto-Seebeck effect in MgO based tunnel junctions. In particular, we considered ordered CoFe alloys as lead material. Next to the MgO barrier, there are different possible terminations of the CoFe alloy due to the assumed ordered alloy. These results show a strong influence of the termination on the temperature dependence of the magneto-Seebeck effect. In addition, we use a simple model to account for randomly ordered alloys. We propose, that by a controlled treatment of the CoFe/MgO interface the magneto-Seebeck effect can be tuned experimentally. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3675987]

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页数：3

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