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Temperature dependence of anisotropic magneto-Seebeck effect in NiPt alloys
Applied Physics Express ( IF 2.3 ) Pub Date : 2021-06-07 , DOI: 10.35848/1882-0786/ac057c
Takamasa Hirai 1 , Rajkumar Modak 1 , Asuka Miura 1 , Takeshi Seki 1, 2, 3 , Koki Takanashi 2, 3, 4 , Ken-ichi Uchida 1, 2, 3
Affiliation  

This letter reports systematic measurements of the anisotropic magneto-Seebeck effect (AMSE) of ferromagnetic Ni100−x Pt x alloys with different Pt concentration ratios x. By simultaneously measuring an applied temperature difference and generated thermopower at the same positions, the Seebeck coefficient under a magnetic field is quantified with high reliability at the temperatures ranging from 300 to 550K. The AMSE of the alloys is maximized at around x=5at% in the high temperature range and disappears at the temperatures lower than the Curie temperature. The systematic dataset and experimental techniques established here will invigorate spin caloritronics studies.



中文翻译:

NiPt合金中各向异性磁塞贝克效应的温度依赖性

这封信报告了具有不同 Pt 浓度比x的铁磁 Ni 100- x Pt x合金的各向异性磁塞贝克效应 (AMSE) 的系统测量。通过在相同位置同时测量施加的温差和产生的热电势,可在 300 至 550K 的温度范围内以高可靠性量化磁场下的塞贝克系数。合金的 AMSE在高温范围内在x = 5at%附近最大化,并在低于居里温度的温度下消失。这里建立的系统数据集和实验技术将激发自旋热电子学研究。

更新日期:2021-06-07
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