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200517.fm Page 4 Friday, March 18, 2005 2:52 PM
2005
Structure
D 2000
17- 004
Crystallographic Features and Tetragonal Phase Stability of PbVO3, a New Member of PbTiO3 Family. — The crystallographic properties of the title compound are
characterized by synchrotron powder XRD between 12 and 570 K. At 300 K, PbVO3
crystallizes in the tetragonal space group P4mm with Z = 1 and is isotypic with PbTiO3.
The tetragonal phase is stable over the whole temperature range studied. Under applied
pressure, a tetragonal-to-cubic phase transition accompanied by an insulator-to-metal
transition starts at ≈2 GPa at room temperature. — (BELIK*, A. A.; AZUMA, M.;
SAITO, T.; SHIMAKAWA, Y.; TAKANO, M.; Chem. Mater. 17 (2005) 2, 269-273;
Inst. Chem. Res., Kyoto Univ., Uji, Kyoto 611, Japan; Eng.) — W. Pewestorf
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