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- W2978555770 abstract "We investigate the nonequilibrium spin polarization due to a temperature gradient in antiferromagnetic insulators, which is the magnonic analog of the inverse spin-galvanic effect of electrons. We derive a linear-response theory of a temperature-gradient-induced spin polarization for collinear and noncollinear antiferromagnets, which comprises both extrinsic and intrinsic contributions. We apply our theory to several noncentrosymmetric antiferromagnetic insulators, i.e., to a one-dimensional antiferromagnetic spin chain, a single layer of kagome noncollinear antiferromagnet, e.g., ${text{KFe}}_{3}{(text{OH})}_{6}{({text{SO}}_{4})}_{2}$, and a noncollinear breathing pyrochlore antiferromagnet, e.g., ${mathrm{LiGaCr}}_{4}{mathrm{O}}_{8}$. The shapes of our numerically evaluated response tensors agree with those implied by the magnetic symmetry. Assuming a realistic temperature gradient of $10phantom{rule{0.28em}{0ex}}text{K/mm}$, we find two-dimensional spin densities of up to $ensuremath{sim}{10}^{6}ensuremath{hbar}/{text{cm}}^{2}$ and three-dimensional bulk spin densities of up to $ensuremath{sim}{10}^{14}ensuremath{hbar}/{text{cm}}^{3}$, encouraging an experimental detection." @default.
- W2978555770 created "2019-10-10" @default.
- W2978555770 creator A5000348832 @default.
- W2978555770 creator A5020637035 @default.
- W2978555770 creator A5042552664 @default.
- W2978555770 creator A5068740804 @default.
- W2978555770 date "2020-01-31" @default.
- W2978555770 modified "2023-10-14" @default.
- W2978555770 title "Magnonic analog of the Edelstein effect in antiferromagnetic insulators" @default.
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- W2978555770 doi "https://doi.org/10.1103/physrevb.101.024427" @default.
- W2978555770 hasPublicationYear "2020" @default.