Open AccessTetragonal BiFeO3 on yttria-stabilized zirconia
Author(s) -
HengJui Liu,
Yu-Hao Du,
Peng Gao,
Yen-Chin Huang,
Hsiao-Wen Chen,
YiChun Chen,
HsiangLin Liu,
Qing He,
Yuichi Ikuhara,
YingHao Chu
Publication year - 2015
Publication title -
apl materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.571
H-Index - 60
ISSN - 2166-532X
DOI - 10.1063/1.4935310
Subject(s) - materials science , tetragonal crystal system , ferroelectricity , multiferroics , raman spectroscopy , monoclinic crystal system , yttria stabilized zirconia , phase (matter) , substrate (aquarium) , cubic zirconia , crystallography , optoelectronics , crystal structure , ceramic , optics , dielectric , composite material , chemistry , physics , oceanography , organic chemistry , geology
High structural susceptibility of multiferroic BiFeO3 (BFO) makes it a potential replacement of current Pb-based piezoelectrics. In this study, a tetragonal phase is identified based on a combination of x-ray diffraction, scanning transmission electronic microscopy, x-ray absorption spectroscopy, and Raman spectroscopy when BFO is grown on yttria-stabilized zirconia (YSZ) substrates. To distinguish the discrepancy between this tetragonal phase and common cases of monoclinic BFO, piezoelectric force microscopy images and optical property are also performed. It shows a lower electrostatic energy of ferroelectric domains and a large reduction of band gap for BFO grown on YSZ substrate comparing to the well-known one grown on LaAlO3 substrate. Our findings in this work can provide more insights to understand the structural diversity of multiferroic BFO system for further applications
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