Spin Seebeck and spin Nernst effects of magnons in noncollinear 
antiferromagnetic insulators

Mook, Alexander; Neumann, Robin R.; Henk, Jürgen; Mertig, Ingrid

doi:10.1103/PhysRevB.100.100401

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Spin Seebeck and spin Nernst effects of magnons in noncollinear antiferromagnetic insulators

MPS-Authors

Mertig, Ingrid
Max Planck Institute of Microstructure Physics, Max Planck Society;

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https://doi.org/10.1103/PhysRevB.100.100401
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Citation

Mook, A., Neumann, R. R., Henk, J., & Mertig, I. (2019). Spin Seebeck and spin Nernst effects of magnons in noncollinear antiferromagnetic insulators. Physical Review B, 100(10): 100401. doi:10.1103/PhysRevB.100.100401.

Cite as: https://hdl.handle.net/21.11116/0000-0009-1095-C

Abstract

Our joint theoretical and computer experimental study of heat-to-spin conversion reveals that noncollinear antiferromagnetic insulators are promising materials for generating magnon spin currents upon application of a temperature gradient: They exhibit spin Seebeck and spin Nernst effects. Using Kubo theory and spin dynamics simulations, we explicitly evaluate these effects in a single kagome sheet of potassium iron jarosite, KFe₃(OH)₆(SO₄)₂, and predict a spin Seebeck conversion factor of 0.2μV/K at a temperature of 20K.