Room-Temperature Multiferroic Hexagonal LuFeO3 Films

Authors

• Wenbin Wang, University of Tennessee, Knoxville
• Jun Zhao, Fudan University
• Wenbo Wang, Rutgers University
• Zheng Gai, Oak Ridge National Laboratory
• Nina Balke, Argonne National Laboratory
• Miaofang Chi, Oak Ridge National Laboratory
• Ho Nyung Lee, Oak Ridge National Laboratory
• Wei Tian, Oak Ridge National Laboratory
• Leyi Zhu, Argonne National Laboratory
• Xuemei Cheng, Bryn Mawr College
• David J. Keavney, Argonne National Laboratory
• Jieyu Yi, University of Tennessee, Knoxville
• Thomas Z. Ward, Oak Ridge National Laboratory
• Paul C. Snijders, Oak Ridge National Laboratory
• Hans M. Christen, Oak Ridge National Laboratory
• Weida Wu, Rutgers University
• Jian Shen, shenj5494@fudan.edu.cn
• Xiaoshan Xu, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

2013

Citation

PRL 110, 237601 (2013)

Comments

Used by permission.

Abstract

The crystal and magnetic structures of single-crystalline hexagonal LuFeO₃ 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 LuFeO₃ films are room-temperature multiferroics.