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Magnetoresistance effects in Pt/EuO1-x

Published version
Peer-reviewed

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Type

Article

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Authors

Mallick, K 
Wagh, AA 
Ionescu, A 
Barnes, CHW 

Abstract

jats:pWe report on the angular and field dependence of the magnetoresistance (MR) in bilayers of Pt/EuO1−x thin films, measured in both in-plane and out-of-plane geometries at different temperatures (T). The presence of oxygen vacancies manifested by a metal–insulator transition as well as a high-T ferromagnet-to-paramagnet transition (TP) was observed in the bilayers. The anisotropic magnetoresistance could be extracted in the entire T-range, even above TP, exhibiting two sign crossovers. We attribute its T-evolution to the rotation of the easy axis of the magnetization direction from a high-T out-of-plane to a low-T in-plane orientation. In addition, we provide direct experimental evidence of the spin Hall effect-induced spin Hall magnetoresistance, systematically considering several known MR contributions that can arise from the films' (111) texture and interface.</jats:p>

Description

Keywords

51 Physical Sciences, 5104 Condensed Matter Physics

Journal Title

Applied Physics Letters

Conference Name

Journal ISSN

0003-6951
1077-3118

Volume Title

116

Publisher

AIP Publishing

Rights

All rights reserved
Sponsorship
Engineering and Physical Sciences Research Council (EP/K503757/1)