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arXiv · 1909.04418

Thermally induced spin-transfer torques in superconductor/ferromagnet bilayers

I. V. Bobkova·A. M. Bobkov·Wolfgang Belzig
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Abstract

Thermally induced magnetization dynamics is currently a flourishing field of research due to its potential application in information technology. We study the paradigmatic system of a magnetic domain wall in a thermal gradient which is interacting with an adjacent superconductor. The spin-transfer torques arising in this system due to the combined action of the giant thermoelectric effect and the creation of equal-spin pairs in the superconductor are large enough to give rise to high domain wall velocities $10^3$ times larger than previously predicted.

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I. V. Bobkova, A. M. Bobkov, Wolfgang Belzig. 2019-09-10. Thermally induced spin-transfer torques in superconductor/ferromagnet bilayers. https://doi.org/10.1103/physrevb.103.l020503

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