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フルテキストURLフルテキストリンクなし
タイトルModulated phases of LiTISO_4
作成者Kasano, Hironobu
Tsuchiyama, Shirou
Kawamura, Yukihiko
Mashiyama, Hiroyuki
作成者ヨミカサノ, ヒロノブ
ツチヤマ, シロウ
カワムラ, ユキヒコ
マシヤマ, ヒロユキ
作成者別表記笠野, 裕修
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)The structurally modulated phases in LiTlSO_4 single crystal are investigated by means of X-ray diffraction. The crystal structure of Phase I in LiTlSO_4 was decided to be isomorphous to that of Phase I (normal phase, space group Pmcn, Z = 4) in LiRbSO_4 and LiNH_4SO_4 by X-ray structural analysis at 320 K. It was found that the satellite reflections with the modulation wavenumber q ~ 0・3a^* appeared in Phase II'(298-267 K) on a cooling run. In Phases II(267-250 K) and III (below 250 K), the modulation wavenumbers were assigned as q = 1/4a^* and q = 1/6a^* + 1/2b^*, respectively. The unit cell volumes of Phases II and III were four times and six times larger than that of Phase I, respectively. It was also found that Phase II did not appear on a heating run from Phase III. The ratio b/a of the basic unit cell size was 1・732 in Phase III as if it were a hexagonal system.
本文言語eng
著者キーワードLiTlSO_4
X-ray diffraction
structurally modulated phase
phase transition
資料タイプtext
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
217
1
開始ページ121
終了ページ128
発行日1998
DOIinfo:doi/10.1080/00150199808015029
関連情報URL(IsPartOf)http://www.tandf.co.uk/journals/titles/00150193.asp
著者版/出版社版その他
リポジトリID2008010254
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010254