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Title: Tetragonal BiFeO{sub 3} on yttria-stabilized zirconia

Journal Article · · APL Materials
DOI:https://doi.org/10.1063/1.4935310· OSTI ID:22499219
 [1];  [1]; ;  [2]; ;  [3]; ;  [4];  [5];  [1]
  1. Department of Materials Science Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan (China)
  2. Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8656 (Japan)
  3. Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (China)
  4. Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan (China)
  5. Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)

High structural susceptibility of multiferroic BiFeO{sub 3} (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 LaAlO{sub 3} substrate. Our findings in this work can provide more insights to understand the structural diversity of multiferroic BFO system for further applications.

OSTI ID:
22499219
Journal Information:
APL Materials, Vol. 3, Issue 11; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
Country of Publication:
United States
Language:
English