Observation of the spin Nernst effect

被引：0

作者：

Meyer S. ^{[1
,2
]}

Chen Y.-T. ^{[3
,4
]}

Wimmer S. ^{[5
]}

Althammer M. ^{[1
]}

Wimmer T. ^{[1
,2
]}

Schlitz R. ^{[1
,9
]}

Geprags S. ^{[1
]}

Huebl H. ^{[1
,2
,6
]}

Kodderitzsch D. ^{[5
]}

Ebert H. ^{[5
]}

Bauer G.E.W. ^{[3
,7
,8
]}

Gross R. ^{[1
,2
,6
]}

Goennenwein S.T.B. ^{[1
,2
,6
,10
]}

机构：

[1] Walther-Meißner-Institut, Bayerische Akademie DerWissenschaften, Walther-Meißner-Straße 8, Garching

[2] Physik-Department, Technische Universitat Munchen, Garching

[3] Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, CJ Delft

[4] RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa,Wako, Saitama

[5] Department Chemie, Physikalische Chemie, Universitat Munchen, Butenandtstraße 5-13, Munchen

[6] Nanosystems Initiative Munich (NIM), Schellingstraße 4, Munchen

[7] Institute for Materials Research, Tohoku University, Sendai, Miyagi

[8] WPI Advanced Institute for Materials Research, Tohoku University, Sendai

[9] Institut fur Festkrperphysik, Technische Universitat Dresden, Dresden

[10] Center for Transport and Devices of Emergent Materials, Technische Universitat Dresden, Dresden

来源：

| 1600年 / Nature Publishing Group卷 / 16期

关键词：

Calculations - Yttrium iron garnet - Crystal symmetry;

D O I：

10.1038/NMAT4964

中图分类号：

学科分类号：

摘要：

The observation of the spin Hall effect triggered intense research on pure spin current transport. With the spin Hall effect, the spin Seebeck effect and the spin Peltier effect already observed, our picture of pure spin current transport is almost complete. The only missing piece is the spin Nernst (-Ettingshausen) effect, which so far has been discussed only on theoretical grounds. Here, we report the observation of the spin Nernst effect. By applying a longitudinal temperature gradient, we generate a pure transverse spin current in a Pt thin film. For readout, we exploit the magnetization-orientation-dependent spin transfer to an adjacent yttrium iron garnet layer, converting the spin Nernst current in Pt into a controlled change of the longitudinal and transverse thermopower voltage. Our experiments show that the spin Nernst and the spin Hall effect in Pt are of comparable magnitude, but differ in sign, as corroborated by first-principles calculations. © 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.

引用

页码：97 / 981

页数：884

共 30 条

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