TY - JOUR
T1 - Stability of Polar Structure in Filling-Controlled Giant Tetragonal Perovskite Oxide PbVO 3
AU - Yamamoto, Hajime
AU - Ogata, Takahiro
AU - Sakai, Yuki
AU - Azuma, Masaki
N1 - Funding Information:
This work was partially supported by Grants-in-Aid for Scientific Research, 16H02393 and 18H05208, from the Japan Society for the Promotion of Science (JSPS) and by Kanagawa Institute of Industrial Science and Technology. The synchrotron radiation experiments were performed at SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (2017B1697).
PY - 2019/2/18
Y1 - 2019/2/18
N2 - The crystal structure and stability of a giant tetragonal phase in electron-doped Pb 1-x Bi x VO 3 (x = 0.1, 0.2, and 0.3) and hole-doped Pb 1-x Na x VO 3 (x = 0.1, 0.2, and 0.3) were studied. Electron doping effectively destabilized the tetragonal structure. The c/a ratio, spontaneous polarization, and tetragonal-to-cubic phase transition pressure systematically decreased with increasing Bi 3+ substitution. In contrast, hole doping hardly affected the tetragonal distortion and structural stability. We showed that electron doping is an effective way to control the stability of the tetragonal phase of PbVO 3 with a 3d 1 electronic configuration.
AB - The crystal structure and stability of a giant tetragonal phase in electron-doped Pb 1-x Bi x VO 3 (x = 0.1, 0.2, and 0.3) and hole-doped Pb 1-x Na x VO 3 (x = 0.1, 0.2, and 0.3) were studied. Electron doping effectively destabilized the tetragonal structure. The c/a ratio, spontaneous polarization, and tetragonal-to-cubic phase transition pressure systematically decreased with increasing Bi 3+ substitution. In contrast, hole doping hardly affected the tetragonal distortion and structural stability. We showed that electron doping is an effective way to control the stability of the tetragonal phase of PbVO 3 with a 3d 1 electronic configuration.
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U2 - 10.1021/acs.inorgchem.8b03333
DO - 10.1021/acs.inorgchem.8b03333
M3 - Article
C2 - 30724063
AN - SCOPUS:85061554863
SN - 0020-1669
VL - 58
SP - 2755
EP - 2760
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 4
ER -