Ferroelectric and structural domains in multiferroic RMnO$_{3}$ (R=rare earths)

ORAL

Abstract

Hexagonal RMnO$_{3}$ (R=rare earths) exhibits a unique improper ferroelectricity induced by structural trimerization. Although intimate coupling between ferroelectric and antiferromagnetic domains was reported at low temperatures [1], the structural domains related to ferroelectric have not been well-studied. In this talk, we will report the relationship between ferroelectric and structural domains in RMnO$_{3}$, obtained from the results of our transmission electron microscopy and scanning probe microscopy. Characteristic structural/ferroelectric domain patterns are clearly observed at room temperatures. The successive phase transitions in RMnO$_{3}$ are suggested to play a crucial role in the domain formation. \\[4pt] [1] M. Fiebig \textit{et al.}, Nature 419, 818 (2002).

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Authors

  • Y. Horibe

    • Rutgers University
    • Rutgers Center for Emergent Materials \& Department of Physics and Astronomy, Rutgers University

  • T. Choi

    • Department of Physics, Rutgers University
    • Rutgers University
    • Rutgers Center for Emergent Materials \& Department of Physics and Astronomy, Rutgers University

  • H.T. Yi

    • Department of Electrical and Computer Engineering, Rutgers University
    • Rutgers University
    • Rutgers Center for Emergent Materials \& Department of Physics and Astronomy, Rutgers University

  • Weida Wu

    • Department of Physics and Astronomy, Rutgers University, Piscataway, NJ
    • Rutgers University
    • Rutgers Center for Emergent Materials \& Department of Physics and Astronomy, Rutgers University

  • S.-W. Cheong

    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, 08854
    • Rutgers Center for Emergent Materials
    • Rutgers University
    • Department of Physics, Rutgers Univeristy
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, 08854, USA
    • Rutgers Center for Emergent Materials \& Department of Physics and Astronomy, Rutgers University