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Phys. Rev. Lett. 96, 207204 (2006) [4 pages]

Magnetic Reversal of the Ferroelectric Polarization in a Multiferroic Spinel Oxide

Y. Yamasaki,1 S. Miyasaka,1 Y. Kaneko,2 J.-P. He,2 T. Arima,2,3 and Y. Tokura1,2,4
1Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
2Spin Superstructure Project, ERATO, Japan Science and Technology Agency, Tsukuba 305-8562, Japan
3Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
4Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8562, Japan

Received 13 March 2006; published 26 May 2006; corrected 15 June 2006

Ferroelectric transition has been detected in a ferrimagnetic spinel oxide of CoCr2O4 upon the transition to the conical spin order below 25 K. The direction [[overline 1]10] of the spontaneous polarization is normal to both the magnetization easy axis [001] and to the propagation axis [110] of the transverse spiral component, in accord with the prediction based on the spin-current model. The reversal of the spontaneous magnetization by a small magnetic field (~0.1 T) induces the reversal of the spontaneous polarization, indicating the clamping of the ferromagnetic and ferroelectric domain walls.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.96.207204
DOI: 10.1103/PhysRevLett.96.207204
PACS: 75.80.+q; 71.27.+a; 77.80.Fm; 75.50.Gg
  • 75.80.+q
    Magnetomechanical and magnetoelectric effects, magnetostriction
  • 71.27.+a
    Strongly correlated electron systems; heavy fermions
  • 77.80.Fm
    Ferroelectric switching phenomena
  • 75.50.Gg
    Ferrimagnetics
  • YEAR: 2006

See Also

Publisher's Note: Magnetic Reversal of the Ferroelectric Polarization in a Multiferroic Spinel Oxide [Phys. Rev. Lett. 96, 207204 (2006)]
Y. Yamasaki, S. Miyasaka, Y. Kaneko et al.
Phys. Rev. Lett. 96, 249902 (E) (2006)

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Erratum

  1. Publisher's Note: Magnetic Reversal of the Ferroelectric Polarization in a Multiferroic Spinel Oxide [Phys. Rev. Lett. 96, 207204 (2006)]
    Y. Yamasaki, S. Miyasaka, Y. Kaneko et al.
    Phys. Rev. Lett. 96, 249902 (E) (2006)


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