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

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

doi:10.1126/science.1154507

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 journal › Article › peer-review

310 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 language	English
Pages (from-to)	1643-1646
Number of pages	4
Journal	Science
Volume	319
Issue number	5870
DOIs	https://doi.org/10.1126/science.1154507
Publication status	Published - 2008 Mar 21
Externally published	Yes

ASJC Scopus subject areas

Medicine(all)
General

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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.",

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AU - Ishiwata, Shintaro

AU - Taguchi, Yasujiro

AU - Murakawa, Hiroshi

AU - Onose, Yoshinori

AU - Tokura, Yoshinori

PY - 2008/3/21

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AB - 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.

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

Abstract

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