Temperature dependence of spin-orbit torques in W/CoFeB bilayers

Skowroński, Witold; Cecot, Monika; Kanak, Jarosław; Ziȩtek, Sławomir; Stobiecki, Tomasz; Yao, Lide; Van Dijken, Sebastiaan; Nozaki, Takayuki; Yakushiji, Kay; Yuasa, Shinji

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Temperature dependence of spin-orbit torques in W/CoFeB bilayers

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Title:	Temperature dependence of spin-orbit torques in W/CoFeB bilayers
Author(s):	Skowroński, Witold ; Cecot, Monika ; Kanak, Jarosław ; Ziȩtek, Sławomir ; Stobiecki, Tomasz ; Yao, Lide ; Van Dijken, Sebastiaan ; Nozaki, Takayuki ; Yakushiji, Kay ; Yuasa, Shinji
Date:	2016-08-08
Language:	en
Pages:	1-4
Department:	AGH University of Science and Technology Department of Applied Physics National Institute of Advanced Industrial Science and Technology
Series:	Applied Physics Letters, Volume 109, issue 6
ISSN:	0003-6951 1077-3118
DOI-number:	10.1063/1.4960793
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Citation: Skowroński , W , Cecot , M , Kanak , J , Ziȩtek , S , Stobiecki , T , Yao , L , Van Dijken , S , Nozaki , T , Yakushiji , K & Yuasa , S 2016 , ' Temperature dependence of spin-orbit torques in W/CoFeB bilayers ' , Applied Physics Letters , vol. 109 , no. 6 , 062407 , pp. 1-4 . https://doi.org/10.1063/1.4960793
Abstract: We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.

Description: \| openaire: EC/FP7/307502/EU//E-CONTROL
Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-201701191223 Email this Export to RefWorks QR Code Print BibTex Tweet