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Control of coexisting ferroelectric phases in RMnO3 crystals with fine tuning of 4f moment

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Abstract

We have systematically investigated the magnetic and the dielectric properties of Eu0.595(Y1−x Ho x )0.405MnO3 (0 ≤ x ≤ 1) single crystals with fine tunning of 4f magnetic moments while keeping the average size of the rare-earth (R) site the same. In the x = 0.3 crystal, the ferroelectric polarization along the c axis (P c ) emerges at 25 K; then, P c is suppressed, and P a appears simultaneously with decreasing temperature. On further decreasing temperature, P a disappears and P c appears again. The observed reentrant behavior of the P c phase indicates that the P a and the P c phases are strongly competing with each other.

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Authors and Affiliations

  1. Department of Physics, Sophia University, Tokyo, 102-8554, Japan

    Tomoya Tadokoro, Naoaki Kano, Haruhiko Kuroe, Tomoyuki Sekine & Hideki Kuwahara

  2. The Institute for Solid State Physics (ISSP), The University of Tokyo, Chiba, 277-8581, Japan

    Mitsuru Akaki

Authors
  1. Tomoya Tadokoro
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  2. Naoaki Kano
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  3. Haruhiko Kuroe
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  4. Tomoyuki Sekine
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  5. Hideki Kuwahara
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  6. Mitsuru Akaki
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Correspondence to Hideki Kuwahara.

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Tadokoro, T., Kano, N., Kuroe, H. et al. Control of coexisting ferroelectric phases in RMnO3 crystals with fine tuning of 4f moment. Journal of the Korean Physical Society 63, 504–507 (2013). https://doi.org/10.3938/jkps.63.504

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  • DOI: https://doi.org/10.3938/jkps.63.504

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