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Pis'ma v Zh. Èksper. Teoret. Fiz., 2018, Volume 108, Issue 2, Pages 88–92 (Mi jetpl5623)  

CONDENSED MATTER

Linear optic response of a noncollinear magnetic system: hydrodynamic theory

E. A. Karashtinabc

a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
b Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
c Rikagaku Kenkyūsho Center for Emergent Matter Science, Wako, Japan

Abstract: A hydrodynamic theory of the linear response of a noncollinearly magnetized medium interacting with electromagnetic radiation has been developed. Linear and quadratic magnetization effects caused by the spatial inhomogeneity of the magnetic moment have been analyzed. Linear magnetization effects include an effect similar to nonreciprocal birefringence, as well as reciprocal and nonreciprocal rotation of the plane of polarization, caused by the inhomogeneity of the magnetic moment. It has been shown that an effect caused by the equilibrium spin current can appear in the considered medium. This effect is determined either by the inhomogeneity of the spin current or by the spatial dispersion of a wave. The effect associated with the spatial dispersion of the wave is linear in its wave vector and is similar to nonreciprocal birefringence. The effect associated with the inhomogeneity of the spin current describes the rotation of the plane of polarization, which, however, can occur in the system with zero average magnetization.

Funding Agency Grant Number
Russian Science Foundation 16-32-10340


DOI: https://doi.org/10.1134/S0370274X18140035

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English version:
Journal of Experimental and Theoretical Physics Letters, 2018, 108:2, 97–101

Bibliographic databases:

Document Type: Article
Received: 03.05.2018
Revised: 04.06.2018

Citation: E. A. Karashtin, “Linear optic response of a noncollinear magnetic system: hydrodynamic theory”, Pis'ma v Zh. Èksper. Teoret. Fiz., 108:2 (2018), 88–92; JETP Letters, 108:2 (2018), 97–101

Citation in format AMSBIB
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\by E.~A.~Karashtin
\paper Linear optic response of a noncollinear magnetic system: hydrodynamic theory
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2018
\vol 108
\issue 2
\pages 88--92
\mathnet{http://mi.mathnet.ru/jetpl5623}
\crossref{https://doi.org/10.1134/S0370274X18140035}
\transl
\jour JETP Letters
\yr 2018
\vol 108
\issue 2
\pages 97--101
\crossref{https://doi.org/10.1134/S0021364018140072}
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