Room-temperature multiferroic hexagonal LuFeO3 films

Wenbin Wang¹, Jun Zhao², Wenbo Wang³, Zheng Gai⁴, Nina Balke⁵, Miaofang Chi⁶, Ho Nyung Lee⁶, Wei Tian⁷, Leyi Zhu⁵, Xuemei Cheng⁸, David J Keavney⁹, Jieyu Yi¹⁰, Thomas Z Ward⁶, Paul C Snijders⁶, Hans M Christen⁶, Weida Wu³, Jian Shen¹¹, Xiaoshan Xu⁶

Affiliations

¹ 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.
² Department of Physics, University of California, Berkeley, California 94720, USA.
³ Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA.
⁴ Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁵ Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
⁶ Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁷ Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁸ Department of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania 19010, USA.
⁹ Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹⁰ Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA.
¹¹ 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.

PMID: 25167529
DOI: 10.1103/PhysRevLett.110.237601

Room-temperature multiferroic hexagonal LuFeO3 films

Wenbin Wang et al. Phys Rev Lett. 2013.

. 2013 Jun 7;110(23):237601.

doi: 10.1103/PhysRevLett.110.237601. Epub 2013 Jun 4.

Authors

Affiliations

¹ 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.
² Department of Physics, University of California, Berkeley, California 94720, USA.
³ Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA.
⁴ Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁵ Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
⁶ Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁷ Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
⁸ Department of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania 19010, USA.
⁹ Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
¹⁰ Department of Physics, University of Tennessee, Knoxville, Tennessee 37996, USA.
¹¹ 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.

PMID: 25167529
DOI: 10.1103/PhysRevLett.110.237601

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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Room-temperature multiferroic hexagonal LuFeO3 films

Affiliations

Room-temperature multiferroic hexagonal LuFeO3 films

Authors

Affiliations

Abstract