"Oxygen-vacancy effect on structural, magnetic, and ferroelectric properties in multiferroic YMnO3 single crystals"

Authors

Dapeng Chen, University of WollongongFollow
Yi Du, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
S. X. Dou, University of WollongongFollow
Zhi W. Lin, University Of Technology Sydney
Jian G. Zhu, University Of Technology Sydney
Bo Xu, Chinese Academy Of Sciences

RIS ID

59077

Publication Details

Chen, D., Du, Y., Wang, X., Cheng, Z., Dou, S. Xue., Lin, Z. W., Zhu, J. G. & Xu, B. (2012). "Oxygen-vacancy effect on structural, magnetic, and ferroelectric properties in multiferroic YMnO3 single crystals". Journal of Applied Physics, 111 (7), 07D913 - 0-07D913-3.

Abstract

"We have investigated the structural, magnetic, and ferroelectric properties of magnetically frustrated multiferroic YMnO3 single crystals. The ferroelectric domain structures of YMnO3 samples were studied by piezoresponse force microscopy. Instead of domain vortex structure in stoichiometric crystals, YMnO3-delta exhibits a random domain configuration with straight domain walls. In magnetic measurements, the YMnO3-delta crystal shows typical antiferromagnetic behavior with higher Neel temperature and lower magnetization compared to the stoichiometric sample. The ordered oxygen vacancies dominate multiferroicity through tailoring the domain wall structure. (C) 2012 American Institute of Physics. [doi:10.1063/1.3676000]"