Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er)

Shuichi Wakimoto, Hiroyuki Kimura, Mamoru Fukunaga, Keisuke Nishihata, Masayasu Takeda, Kazuhisa Kakurai, Yukio Noda, Yoshinori Tokura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Polarized neutron diffraction experiments have been performed on multiferroic materials RMn2 O5 (R = Ho, Er) under electric fields in the ferroelectric commensurate (CM) and the low-temperature incommensurate (LT-ICM) phases, where the former has the highest electric polarization and the latter has reduced polarization. It is found that, after cooling in electric fields down to the CM phase, the magnetic chirality is proportional to the electric polarization. Also we confirmed that the magnetic chirality can be switched by the polarity of the electric polarization in both the CM and LT-ICM phases. These facts suggest an intimate coupling between the magnetic chirality and the electric polarization. However, upon the transition from the CM to LT-ICM phase, the reduction of the electric polarization is not accompanied by any reduction of the magnetic chirality, implying that the CM and LT-ICM phases contain different mechanisms of the magnetoelectric coupling.

Original languageEnglish
Pages (from-to)2513-2516
Number of pages4
JournalPhysica B: Condensed Matter
Volume404
Issue number17
DOIs
Publication statusPublished - Sep 1 2009
Externally publishedYes

Fingerprint

Chirality
chirality
Polarization
polarization
Electric fields
Temperature
electric fields
Neutron diffraction
Ferroelectric materials
neutron diffraction
polarity
Cooling
cooling
Experiments

Keywords

  • Multiferroic RMn O
  • Polarized neutron diffraction
  • Spin chirality

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Wakimoto, S., Kimura, H., Fukunaga, M., Nishihata, K., Takeda, M., Kakurai, K., ... Tokura, Y. (2009). Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er). Physica B: Condensed Matter, 404(17), 2513-2516. https://doi.org/10.1016/j.physb.2009.06.012

Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er). / Wakimoto, Shuichi; Kimura, Hiroyuki; Fukunaga, Mamoru; Nishihata, Keisuke; Takeda, Masayasu; Kakurai, Kazuhisa; Noda, Yukio; Tokura, Yoshinori.

In: Physica B: Condensed Matter, Vol. 404, No. 17, 01.09.2009, p. 2513-2516.

Research output: Contribution to journalArticle

Wakimoto, S, Kimura, H, Fukunaga, M, Nishihata, K, Takeda, M, Kakurai, K, Noda, Y & Tokura, Y 2009, 'Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er)', Physica B: Condensed Matter, vol. 404, no. 17, pp. 2513-2516. https://doi.org/10.1016/j.physb.2009.06.012
Wakimoto S, Kimura H, Fukunaga M, Nishihata K, Takeda M, Kakurai K et al. Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er). Physica B: Condensed Matter. 2009 Sep 1;404(17):2513-2516. https://doi.org/10.1016/j.physb.2009.06.012
Wakimoto, Shuichi ; Kimura, Hiroyuki ; Fukunaga, Mamoru ; Nishihata, Keisuke ; Takeda, Masayasu ; Kakurai, Kazuhisa ; Noda, Yukio ; Tokura, Yoshinori. / Spin chirality and electric polarization in multiferroic compounds RMn2 O5 (R = Ho, Er). In: Physica B: Condensed Matter. 2009 ; Vol. 404, No. 17. pp. 2513-2516.
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AU - Takeda, Masayasu

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