title: BiScO3: centrosymmetric BiMnO3-type oxide.
abstract: With neutron powder diffraction, electron diffraction, and second-harmonic generation, we have shown that BiScO3 has a structure closely related to that of multiferroic BiMnO3, but BiScO3 crystallizes in the centrosymmetric space group of C2/c. These results bring up a question about the origin of ferroelectricity in BiMnO3. BiScO3 may serve as a model system to understand the role of Mn3+ ions in the ferroelectricity of BiMnO3.
authors.affiliation: International Center for Young Scientists, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. Alexei.Belik@nims.go.jp
authors.forename: Alexei A
authors.initials: AA
authors.lastname: Belik
authors.forename: Satoshi
authors.initials: S
authors.lastname: Iikubo
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Kodama
authors.forename: Naoki
authors.initials: N
authors.lastname: Igawa
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Shamoto
authors.forename: Makoto
authors.initials: M
authors.lastname: Maie
authors.forename: Takuro
authors.initials: T
authors.lastname: Nagai
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Matsui
authors.forename: Sergey Yu
authors.initials: SY
authors.lastname: Stefanovich
authors.forename: Bogdan I
authors.initials: BI
authors.lastname: Lazoryak
authors.forename: Eiji
authors.initials: E
authors.lastname: Takayama-Muromachi