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Thermally induced magnon accumulation in two-sublattice magnets

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arxiv 1609.02161 v1 pith:FDZPVSUT submitted 2016-09-07 cond-mat.mtrl-sci

Thermally induced magnon accumulation in two-sublattice magnets

classification cond-mat.mtrl-sci
keywords spintemperaturecurrentsexcitationmagnetizationtwo-sublatticeaccumulationantiferromagnets
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a temperature dependent study of the thermal excitation of magnonic spin currents in two-sublattice magnetic materials. Using atomistic spin model simulations, we study the local magnetization profiles in the vicinity of a temperature step in antiferromagnets, as well as in ferrimagnets. It is shown that the strength of the excitation of the spin currents in these systems scales with the derivative of the magnetization with respect to the temperature.

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