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