Low-magnetic-field control of electric polarization vector in a helimagnet

Shintaro Ishiwata, Yasujiro Taguchi, Hiroshi Murakawa, Yoshinori Onose, Yoshinori Tokura

Research output: Contribution to journalArticlepeer-review

272 Citations (Scopus)

Abstract

The mutual control of the electric and magnetic properties of a solid is currently of great interest because of the possible application for novel electronic devices. We report on the low-magnetic-field (for example, B values of ±30 milliteslas) control of the polarization (P) vector in a hexaferrite, Ba2Mg2Fe12O22, which shows the helimagnetic spin structure with the propagation vector k0 parallel to [001]. The B-induced transverse conical spin structure carries the P vector directing perpendicular to both B and k0, in accord with the recently proposed spin-current model. Then, the oscillating or multidirectionally rotating B produces the cyclic displacement current via the flexible handling of the magnetic cone axis.

Original languageEnglish
Pages (from-to)1643-1646
Number of pages4
JournalScience
Volume319
Issue number5870
DOIs
Publication statusPublished - 2008 Mar 21
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)
  • General

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