Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4

Y. J. Choi, J. Okamoto, D. J. Huang, K. S. Chao, H. J. Lin, C. T. Chen, M. Van Veenendaal, T. A. Kaplan, S. W. Cheong

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

We report the unexpected evolution, with thermal and magnetic-field (H) variations, of the interrelation between the polarization P, magnetization M, and spiral wave vector Q in CoCr2O4, which has a ferrimagnetic conical-spiral magnetic order. For example, P suddenly jumps and changes its sign at the magnetic lock-in transition (TL) with thermal variation, or with isothermal variation of H (without changing its direction) at TL, which surprisingly occurs without change in spiral handedness (i.e., the sign of Q). The presence of multiple spiral sublattices may be behind this unusual behavior.

Original languageEnglish
Article number067601
JournalPhysical Review Letters
Volume102
Issue number6
DOIs
Publication statusPublished - 2009 Feb 9

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polarization
handedness
sublattices
magnetization
magnetic fields

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Choi, Y. J., Okamoto, J., Huang, D. J., Chao, K. S., Lin, H. J., Chen, C. T., ... Cheong, S. W. (2009). Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4. Physical Review Letters, 102(6), [067601]. https://doi.org/10.1103/PhysRevLett.102.067601
Choi, Y. J. ; Okamoto, J. ; Huang, D. J. ; Chao, K. S. ; Lin, H. J. ; Chen, C. T. ; Van Veenendaal, M. ; Kaplan, T. A. ; Cheong, S. W. / Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4. In: Physical Review Letters. 2009 ; Vol. 102, No. 6.
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Choi, YJ, Okamoto, J, Huang, DJ, Chao, KS, Lin, HJ, Chen, CT, Van Veenendaal, M, Kaplan, TA & Cheong, SW 2009, 'Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4', Physical Review Letters, vol. 102, no. 6, 067601. https://doi.org/10.1103/PhysRevLett.102.067601

Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4. / Choi, Y. J.; Okamoto, J.; Huang, D. J.; Chao, K. S.; Lin, H. J.; Chen, C. T.; Van Veenendaal, M.; Kaplan, T. A.; Cheong, S. W.

In: Physical Review Letters, Vol. 102, No. 6, 067601, 09.02.2009.

Research output: Contribution to journalArticle

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AU - Okamoto, J.

AU - Huang, D. J.

AU - Chao, K. S.

AU - Lin, H. J.

AU - Chen, C. T.

AU - Van Veenendaal, M.

AU - Kaplan, T. A.

AU - Cheong, S. W.

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