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フルテキストURL2007020120.pdf ( 95.0KB ) 公開日 2010-04-16
タイトルMean-Field Description of Structural Phase Transitions in a Hypercubic Lattice Model
作成者Tchouobiap, Mkam S. E.
Mashiyama, 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)We examine the mean-field theory investigation of a hypercubic lattice model that exhibits structural phase transitions. In this model, with anharmonicity as main characteristic and displacement-displacement stiffness constant, the occurrence of phase transitions mechanism is analyzed and the effects of the anharmonicity on the order of the transition are studied. Discussing the features of the Hamiltonian, thermodynamic properties calculated show the occurrence of the structural phase transitions, which are either (i) a second-order transition (characteristic of short-range attractive part of the double- Morse one-site potential) or (ii) a first-order transition with sharp melting transition and bifurcation entropy, depending on the strength of the anharmonicity.
本文言語eng
著者キーワードmean-field theory
structural phase transition
D-dimensional hypercubic lattice model
anharmonicity
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131
終了ページ136
発行日2007-03
DOIinfo:doi/10.1080/00150190701196302
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ID2007020120
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2007020120