Magnetic-field-induced polarization flop in multiferroic TmMn2O5

M. Fukunaga, Y. Sakamoto, H. Kimura, Y. Noda, N. Abe, K. Taniguchi, T. Arima, S. Wakimoto, M. Takeda, K. Kakurai, K. Kohn

Research output: Contribution to journalArticle

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Abstract

We discovered a reversible electric polarization flop from the a axis (Pa) to the b axis (Pb) in multiferroic TmMn2O5 below 5K by applying a magnetic field of approximately 0.5T along the c axis. This phenomenon is the first example of the rare-earth (R) compound RMn2O5. This magnetic-field-induced polarization flop corresponds to a magnetic phase transition from one incommensurate magnetic (ICM) Pa phase to another ICM Pb phase, which is equivalent to an ICM Pb phase above 5K under no magnetic field. The spin chirality in the bc plane, which was observed in the Pb phase by polarized neutron diffraction, disappeared in the ICM Pa phase. This indicates that the polarization in the ICM phases of TmMn2O5 was induced by an Si×Sj-type interaction.

Original languageEnglish
Article number077204
JournalPhysical Review Letters
Volume103
Issue number7
DOIs
Publication statusPublished - Aug 13 2009
Externally publishedYes

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polarization
magnetic fields
chirality
neutron diffraction
rare earth elements
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fukunaga, M., Sakamoto, Y., Kimura, H., Noda, Y., Abe, N., Taniguchi, K., ... Kohn, K. (2009). Magnetic-field-induced polarization flop in multiferroic TmMn2O5. Physical Review Letters, 103(7), [077204]. https://doi.org/10.1103/PhysRevLett.103.077204

Magnetic-field-induced polarization flop in multiferroic TmMn2O5. / Fukunaga, M.; Sakamoto, Y.; Kimura, H.; Noda, Y.; Abe, N.; Taniguchi, K.; Arima, T.; Wakimoto, S.; Takeda, M.; Kakurai, K.; Kohn, K.

In: Physical Review Letters, Vol. 103, No. 7, 077204, 13.08.2009.

Research output: Contribution to journalArticle

Fukunaga, M, Sakamoto, Y, Kimura, H, Noda, Y, Abe, N, Taniguchi, K, Arima, T, Wakimoto, S, Takeda, M, Kakurai, K & Kohn, K 2009, 'Magnetic-field-induced polarization flop in multiferroic TmMn2O5', Physical Review Letters, vol. 103, no. 7, 077204. https://doi.org/10.1103/PhysRevLett.103.077204
Fukunaga M, Sakamoto Y, Kimura H, Noda Y, Abe N, Taniguchi K et al. Magnetic-field-induced polarization flop in multiferroic TmMn2O5. Physical Review Letters. 2009 Aug 13;103(7). 077204. https://doi.org/10.1103/PhysRevLett.103.077204
Fukunaga, M. ; Sakamoto, Y. ; Kimura, H. ; Noda, Y. ; Abe, N. ; Taniguchi, K. ; Arima, T. ; Wakimoto, S. ; Takeda, M. ; Kakurai, K. ; Kohn, K. / Magnetic-field-induced polarization flop in multiferroic TmMn2O5. In: Physical Review Letters. 2009 ; Vol. 103, No. 7.
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