Evidence for phonon skew scattering in the spin Hall effect of platinum

Title
Evidence for phonon skew scattering in the spin Hall effect of platinum
Authors
한동수Gurucharan V KarnadCosimo GoriniKyujoon LeeT. SchulzR. Lo ConteA. W. J. WellsK. ShahbaziJ.-S. KimT. A. MooreH. J. M. SwagtenU. EckernR. RaimondiM. Klaui
Issue Date
2018-03
Publisher
Physical review B, Condensed matter and materials physics
Citation
VOL 97, NO 10, 100405
Abstract
We measure and analyze the effective spin Hall angle of platinum in the low-residual resistivity regime by second-harmonic measurements of the spin-orbit torques for a multilayer of Pt vertical bar Co vertical bar AlOx. An angular-dependent study of the torques allows us to extract the effective spin Hall angle responsible for the damping-like torque in the system. We observe a strikingly nonmonotonic and reproducible temperature dependence of the torques. This behavior is compatible with recent theoretical predictions which include both intrinsic and extrinsic (impurities and phonons) contributions to the spin Hall effect at finite temperatures.
URI
http://pubs.kist.re.kr/handle/201004/70760
ISSN
2469-9950
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE