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arXiv · 1811.05848

Anomalous Hall-like transverse magnetoresistance in Au thin films on Y$_3$Fe$_5$O$_{12}$

Tobias Kosub·Saül Vélez·Juan M. Gomez-Perez·Luis E. Hueso·Jürgen Faßbender·Fèlix Casanova·Denys Makarov
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Abstract

Anomalous Hall-like signals in platinum in contact with magnetic insulators are common observations that could be explained by either proximity magnetization or spin Hall magnetoresistance. In this work, longitudinal and transverse magnetoresistances are measured in a pure gold thin film on the ferrimagnetic insulator Y$_3$Fe$_5$O$_{12}$ (Yttrium Iron Garnet, YIG). We show that both the longitudinal and transverse magnetoresistances have quantitatively consistent scaling in YIG/Au and in a YIG/Pt reference system when applying the Spin Hall magnetoresistance framework. No contribution of an anomalous Hall effect due to the magnetic proximity effect is evident.

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Tobias Kosub, Saül Vélez, Juan M. Gomez-Perez, Luis E. Hueso, Jürgen Faßbender, Fèlix Casanova, Denys Makarov. 2018-11-14. Anomalous Hall-like transverse magnetoresistance in Au thin films on Y$_3$Fe$_5$O$_{12}$. https://doi.org/10.1063/1.5053902

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