Spin current and magneto-electric effect in non-collinear magnets

ORAL

Abstract

A new mechanism of the magneto-electric (ME) effect based on the spin supercurrent is theoretically proposed for non-collinear magnets. The close analogy between the superconductors (charge current) and magnets (spin current) is drawn to derive the distribution of the spin supercurrent and the resultant electric polarization. Applications to various spiral magnets are discussed.

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Authors

  • Hosho Katsura

    Tokyo University

  • Naoto Nagaosa

    Tokyo University, CREST, Department of Applied Physics, the University of Tokyo

  • Alexander Balatsky

    LANL, Los Alamos National Laboratory, Los Alamos Natinoal Laboratory