Material dependence of anomalous Nernst effect in perpendicularly magnetized ordered-alloy thin films

被引：100
|
作者：
Hasegawa, K. [1 ]
Mizuguchi, M. [1 ,2 ]
Sakuraba, Y. [1 ]
Kamada, T. [1 ]
Kojima, T. [1 ]
Kubota, T. [3 ]
Mizukami, S. [3 ]
Miyazaki, T. [3 ]
Takanashi, K. [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 25期
基金：
日本学术振兴会;
关键词：
SPIN CALORITRONICS;
D O I：
10.1063/1.4922901
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Material dependence of the anomalous Nernst effect (ANE) in perpendicularly magnetized ordered-alloy thin films is systematically investigated. The ANE was found to have a tendency to increase simply as uniaxial magnetic anisotropy increased at room temperature. The ANE increases as temperature increases from 10 to 300K for all the materials. However, the signs of the ANE in Fe-based ordered-alloys (L1(0)-FePt and L1(0)-FePd) and in a Co/Ni multilayer are opposite to those in Mn-based ordered-alloys (L1(0)-MnGa and D0(22)-Mn2Ga). Ordered-alloys with larger uniaxial magnetic anisotropies reveal larger ANE and might be desirable for thermoelectric applications. (C) 2015 AIP Publishing LLC.
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页数：4
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