Direct detection of spin Nernst effect in platinum

被引：40

作者：

Bose, A. ^{[1
]}

Bhuktare, S. ^{[1
]}

Singh, H. ^{[1
]}

Dutta, S. ^{[1
]}

Achanta, V. G. ^{[2
]}

Tulapurkar, A. A. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Mumbai 400076, Maharashtra, India

[2] Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Homi Bhabha Rd, Mumbai 400005, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 2018年 / 112卷 / 16期

关键词：

Thermal gradients - Heavy metals - Platinum - Magnets;

D O I：

10.1063/1.5021731

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Generation of spin current lies at the heart of spintronic research. The spin Hall effect and the spin Seebeck effect have drawn considerable attention in the last few years to create pure spin current by heavy metals and ferromagnets, respectively. In this work, we show the direct evidence of heat current to spin current conversion in non-magnetic Platinum by the spin Nernst effect (SNE) at room temperature. This is the thermal analogue of the spin Hall effect in non-magnets. We have shown that the 8K/mu m thermal gradient in Pt can lead to the generation of pure spin current density of the order of 10(8) A/m(2) by virtue of SNE. This opens up an additional possibility to couple the relativistic spin-orbit interaction with the thermal gradient for spintronic applications. Published by AIP Publishing.

引用

页数：5

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