6533b85efe1ef96bd12c0984
RESEARCH PRODUCT
Thermally induced magnon accumulation in two-sublattice magnets
Ulrike RitzmannUlrich NowakDenise Hinzkesubject
PhysicsCondensed Matter - Materials ScienceSpin polarizationCondensed matter physicsMagnonMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesCondensed Matter::Materials ScienceMagnetizationchemistry.chemical_compoundchemistryMagnet0103 physical sciencesThermalSpin modelddc:530Condensed Matter::Strongly Correlated Electrons010306 general physics0210 nano-technologyExcitationDerivative (chemistry)description
We present a temperature-dependent study of the thermal excitation of a magnon accumulation in two-sublattice magnetic materials. Using atomistic spin model simulations, we study the local magnetization profiles sublattice-wise in the vicinity of a temperature step in antiferromagnets, as well as in ferrimagnets. It is shown that the strength of the magnon accumulation in these systems scales with the derivative of the magnetization with respect to the temperature. These results give an insight into the complex temperature dependence of the magnon accumulation by making a direct link to the macroscopic behavior of the magnetization.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-09-07 | Physical Review B |