Authors:	Karnad, Gurucharan V. Gorini, Cosimo Lee, Kyujoon Schulz, Tomek Lo Conte, Roberto Wells, A. W. J. Han, Dong-So Shahbazi, Kowsar Kim, Jun-Seo Moore, T. A. Swagten, H. J. M. Eckern, Ulrich Raimondi, Roberto Kläui, Mathias
Title:	Evidence for phonon skew scattering in the spin Hall effect of platinum
Online publication date:	20-Aug-2019
Year of first publication:	2018
Language:	english
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.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-102
URN:	urn:nbn:de:hebis:77-publ-592057
Version:	Accepted version
Publication type:	Zeitschriftenaufsatz
License:	In Copyright
Information on rights of use:	https://rightsstatements.org/vocab/InC/1.0/
Journal:	Physical review : B 97 10
Pages or article number:	Art. 100405
Publisher:	American Physical Society
Publisher place:	College Park, Md.
Issue date:	2018
ISSN:	2469-9969 1095-3795
Publisher URL:	http://dx.doi.org/10.1103/PhysRevB.97.100405
Publisher DOI:	10.1103/PhysRevB.97.100405
Appears in collections:	JGU-Publikationen