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arXiv · 2012.14383

Anomalous Hall and Nernst Effects in FeRh

Hilal Saglam·Changjiang Liu·Yi Li·Joseph Sklenar·Jonathan Gibbons·Deshun Hong·Vedat Karakas·John E. Pearson·Ozhan Ozatay·Wei Zhang·Anand Bhattacharya·Axel Hoffmann
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Abstract

Antiferromagnets with tunable phase transitions are promising for future spintronics applications. We investigated spin-dependent transport properties of FeRh thin films, which show a temperature driven antiferromagnetic-to-ferromagnetic phase transition. Epitaxial FeRh films grown on MgO (001) substrates exhibit a clear magnetic and electronic phase transition. By performing anomalous Hall and anomalous Nernst effect measurements over a wide range of temperatures, we demonstrate that the thermally driven transition shows distinctly different transverse transport on both side of the phase transition. Particularly, a sign change of both anomalous Hall and Nernst signals is observed.

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Hilal Saglam, Changjiang Liu, Yi Li, Joseph Sklenar, Jonathan Gibbons, Deshun Hong, Vedat Karakas, John E. Pearson, Ozhan Ozatay, Wei Zhang, Anand Bhattacharya, Axel Hoffmann. 2020-12-28. Anomalous Hall and Nernst Effects in FeRh. https://arxiv.org/abs/2012.14383

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