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Dr. Kengo Oka, Tsukasa Koyama, Tomoatsu Ozaaki, Prof. Dr. Shigeo Mori, Prof. Dr. Yuichi Shimakawa and Prof. Dr. Masaki Azuma Polarization Rotation in the Monoclinic Perovskite BiCo1−xFexO3 Angewandte Chemie International Edition 51

Article first published online: 2 JUL 2012 | DOI: 10.1002/anie.201202644

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The monoclinic perovskite BiCo1−xFexO3 (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(Ti1−xZrx)O3 at the morphotropic phase boundary.

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