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arXiv · 2307.03458

Anomalous Nernst effect in perpendicularly magnetised τ-MnAl thin films

Daniel Scheffler·Sebastian Beckert·Helena Reichlova·Thomas G. Woodcock·Sebastian T. B. Goennenwein·Andy Thomas
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Abstract

$τ$-MnAl is interesting for spintronic applications as a ferromagnet with perpendicular magnetic anisotropy due to its high uniaxial magnetocrystalline anisotropy. Here we report on the anomalous Nernst effect of sputter deposited $τ$-MnAl thin films. We demonstrate a robust anomalous Nernst effect at temperatures of 200 K and 300 K with a hysteresis similar to the anomalous Hall effect and the magnetisation of the material. The anomalous Nernst coefficient of (0.6$\pm$0.24) $μ$V/K at 300 K is comparable to other perpendicular magnetic anisotropy thin films. Therefore $τ$-MnAl is a promising candidate for spin-caloritronic research.

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Daniel Scheffler, Sebastian Beckert, Helena Reichlova, Thomas G. Woodcock, Sebastian T. B. Goennenwein, Andy Thomas. 2023-07-07. Anomalous Nernst effect in perpendicularly magnetised τ-MnAl thin films. https://arxiv.org/abs/2307.03458

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