Theory of electric polarization in multiorbital Mott insulators

Maxim Mostovoy, Kentaro Nomura, Naoto Nagaosa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The interaction between the electric field E and spins in multiorbital Mott insulators is studied theoretically. We find a generic coupling mechanism, which works for all crystal lattices and which does not involve relativistic effects. It couples E to the "internal" electric field e originating from the dynamical Berry phase. We discuss several effects of this interaction: (i) an unusual electron spin resonance, (ii) the displacement of spin textures in an applied electric field, and (iii) the resonant absorption of circularly polarized light by Skyrmions, magnetic bubbles, and magnetic vortices.

Original languageEnglish
Article number047204
JournalPhysical review letters
Volume106
Issue number4
DOIs
Publication statusPublished - 2011 Jan 27
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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