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research article

Regulating the anomalous Hall and Nernst effects in Heusler-based trilayers

Hu, Junfeng
•
Butler, Tane
•
Cabero, Marco A. Z.
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August 10, 2020
Applied Physics Letters

Anomalous Hall and anomalous Nernst properties of thin MgO/Co-2Fe0.4Mn0.6Si/Pd stacks with perpendicular magnetic anisotropy (PMA) revealed the presence of the magnetic proximity effect (MPE) in the Pd layer. The MPE is evidenced by nanometer range thickness-dependent transport measurements. A three-layer model that combines bulk and interface contributions accounts for our experimental data and provides quantitative estimates for the contributions to the total anomalous Nernst voltage of the ferromagnet Heusler [+ 0.97 mu V/(K nm)] and the proximity-magnetized Pd layers [- 0.17 mu V/(K nm)]. The anomalous Nernst effect (ANE) reverses its sign by tuning the thickness of the Heusler layer, which is useful for designing ANE thermopiles.

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Type
research article
DOI
10.1063/5.0014879
Web of Science ID

WOS:000562793900005

Author(s)
Hu, Junfeng
Butler, Tane
Cabero, Marco A. Z.
Wang, Hanchen
Wei, Bohang
Tu, Sa
Guo, Chenyang
Wan, Caihua
Han, Xiufeng
Liu, Song
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Date Issued

2020-08-10

Published in
Applied Physics Letters
Volume

117

Issue

6

Article Number

062405

Subjects

Physics, Applied

•

Physics

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPMN  
Available on Infoscience
September 10, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/171553
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