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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Phase transitions in the mixed crystals LiRb_<1-x>(NH_4)_xSO_4
作成者Kawamura, K.
Kuramashi, A.
Nakamura, H.
Kasano, H.
Mashiyama, H.
Nakanishi, S.
Itoh, H.
作成者ヨミカサノ, ヒロノブ
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 successive phase transitions of mixed crystal systems of LiRbSO_4-LiNH_4SO_4 were studied by X-ray diffraction, dielectric measurement, thermal analysis and SHG detection as functions of temperature and ammonium concentration x. Although the ammonium ion is almost of the same size as the rubidium ion, a small amount of ammonium reduces the transition temperatures and the incommensurate and the fivefold commensurate phases of LiRbSO_4 fade out for x>0.1. With further replacing rubidium by ammonium, the antiferroelectric phase of LiRbSO_4 does not appear and the phase sequence is similar to LiNH_4SO_4 for x>0.25. The phase diagram and the modulated structure are discussed in reference to an Ising model with long range interactions.
本文言語eng
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
105
1
開始ページ279
終了ページ284
発行日1990
DOIinfo:doi/10.1080/00150199008224655
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ID2008010248
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010248