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フルテキストURL2007020121.pdf ( 192.4KB ) 公開日 2010-04-16
タイトルDisordered Configuration of Methylammonium of CH_3NH_3PbBr_3 Determined by Single Crystal Neutron Diffractometry
作成者Mashiyama, H.
Kawamura, Y.
Kasano, H.
Asahi, T.
Noda, Y.
Kimura, H.
作成者ヨミマシヤマ, ヒロユキ
作成者別表記Mashiyama, Hiroyuki
増山, 博行
作成者所属山口大学大学院理工学研究科(理学)
内容記述(抄録等)In order to understand the mechanism of the structural phase transition in CH_3NH_3PbBr_3, neutron diffraction data from the single crystal is analyzed by the least-squares method and the maximum entropy method. The disordered configuration of a methylammonium ion in a cage surrounded by eight PbBr_6 octahedrons is identified unambiguously. With comparing the low-temperature structure, the transition is characterized by the condensation of the rotational motion of the PbBr_6 octahedron around the Pb-Br axis, which accompanies the partial ordering of the methylammonium ion to reduce the site symmetry.
本文言語eng
著者キーワードperovskite structure
disordered configuration
methylammonium
phase transition
資料タイプtext
ファイル形式application/pdf
出版者Taylor and Francis
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0015-0193
NCIDAA00644949
掲載誌名Ferroelectrics
348
開始ページ182
終了ページ186
発行日2007-03
DOIinfo:doi/10.1080/00150190701196435
関連情報URL(IsPartOf)http://www.tandf.co.uk/journals/titles/00150193.asp
著者版/出版社版著者版
リポジトリID2007020121
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2007020121