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Room-temperature multiferroic hexagonal LuFeO3 films.
Wang, Wenbin; Zhao, Jun; Wang, Wenbo; Gai, Zheng; Balke, Nina; Chi, Miaofang; Lee, Ho Nyung; Tian, Wei; Zhu, Leyi; Cheng, Xuemei; Keavney, David J; Yi, Jieyu; Ward, Thomas Z; Snijders, Paul C; Christen, Hans M; Wu, Weida; Shen, Jian; Xu, Xiaoshan.
Afiliação
  • Wang W; Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Zhao J; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Wang W; Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA.
  • Gai Z; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Balke N; Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Chi M; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Lee HN; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Tian W; Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Zhu L; Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Cheng X; Department of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania 19010, USA.
  • Keavney DJ; Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Yi J; Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Ward TZ; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Snijders PC; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Christen HM; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Wu W; Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA.
  • Shen J; Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA and State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Xu X; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
Phys Rev Lett ; 110(23): 237601, 2013 Jun 07.
Article em En | MEDLINE | ID: mdl-25167529
ABSTRACT
The crystal and magnetic structures of single-crystalline hexagonal LuFeO(3) films have been studied using x-ray, electron, and neutron diffraction methods. The polar structure of these films are found to persist up to 1050 K; and the switchability of the polar behavior is observed at room temperature, indicating ferroelectricity. An antiferromagnetic order was shown to occur below 440 K, followed by a spin reorientation resulting in a weak ferromagnetic order below 130 K. This observation of coexisting multiple ferroic orders demonstrates that hexagonal LuFeO(3) films are room-temperature multiferroics.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2013 Tipo de documento: Article