Autoren:	Dong, Bo-Wen Cramer, Joel Ganzhorn, Kathrin Yuan, H. Y. Guo, Er-Jia Goennenwein, Sebastian T. B. Kläui, Mathias
Titel:	Spin Hall magnetoresistance in the non-collinear ferrimagnet GdIG close to the compensation temperature
Online-Publikationsdatum:	20-Aug-2019
Erscheinungsdatum:	2018
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	We investigate the spin Hall magnetoresistance (SMR) in a gadolinium iron garnet (GdIG)/platinum (Pt) heterostructure by angular dependent magnetoresistance measurements. The magnetic structure of the ferromagnetic insulator GdIG is non-collinear near the compensation temperature, while it is collinear far from the compensation temperature. In the collinear regime, the SMR signal in GdIG is consistent with the usual sin(2)theta relation well established in the collinear magnet yttrium iron garnet, with theta the angle between magnetization and spin Hall spin polarization direction. In the non-collinear regime, both an SMR signal with inverted sign and a more complex angular dependence with four maxima are observed within one sweep cycle. The number of maxima as well as the relative strength of different maxima depend strongly on temperature and field strength. Our results evidence a complex SMR behavior in the non-collinear magnetic regime that goes beyond the conventional formalism developed for collinear magnetic structures.
DDC-Sachgruppe:	530 Physik 530 Physics
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 08 Physik, Mathematik u. Informatik
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-201
URN:	urn:nbn:de:hebis:77-publ-591977
Version:	Accepted version
Publikationstyp:	Zeitschriftenaufsatz
Nutzungsrechte:	Urheberrechtsschutz
Informationen zu den Nutzungsrechten:	https://rightsstatements.org/vocab/InC/1.0/
Zeitschrift:	Journal of physics : condensed matter 30 3
Seitenzahl oder Artikelnummer:	Art. 035802
Verlag:	IOP Publ.
Verlagsort:	Bristol
Erscheinungsdatum:	2018
ISSN:	0953-8984 1361-648X
URL der Originalveröffentlichung:	http://dx.doi.org/10.1088/1361-648X/aa9e26
DOI der Originalveröffentlichung:	10.1088/1361-648X/aa9e26
Enthalten in den Sammlungen:	JGU-Publikationen