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Polarization Rotation in the Monoclinic Perovskite BiCo 1− x Fe x O 3
Author(s) -
Oka Kengo,
Koyama Tsukasa,
Ozaaki Tomoatsu,
Mori Shigeo,
Shimakawa Yuichi,
Azuma Masaki
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201202644
Subject(s) - monoclinic crystal system , tetragonal crystal system , crystallography , materials science , perovskite (structure) , phase boundary , x ray crystallography , synchrotron , crystal structure , diffraction , electron diffraction , condensed matter physics , phase (matter) , chemistry , physics , optics , organic chemistry
The monoclinic perovskite BiCo 1− x Fe x O 3 ( x ≈0.7) undergoes a second‐order structural transition from tetragonal to monoclinic, which is accompanied by a rotation of the polarization vector from the [001] to [111] directions of a pseudo cubic cell. The crystal structure, determined by electron diffraction and powder synchrotron X‐ray diffraction, was the same as that of Pb(Ti 1− x Zr x )O 3 at the morphotropic phase boundary.