Open AccessDIRECTION OF SECOND ORDER STRUCTURAL PHASE TRANSITION AT г POINT OF hn SPACE GROUPS
Author(s) -
Ruibao Tao,
Enxi Yu,
Jianguo Lü,
Zhe Chen
Publication year - 1983
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.32.819
Subject(s) - phase transition , space (punctuation) , order (exchange) , landau theory , point (geometry) , condensed matter physics , space group , transition point , physics , ferroics , quantum phase transition , phase (matter) , quantum critical point , statistical physics , mathematics , quantum mechanics , thermodynamics , geometry , computer science , diffraction , x ray crystallography , finance , economics , operating system
By calculating the minimum of thermodynamic potential in Landau's theory of second order phase transition, the direction of second order structural phase transition at Γ point of Ohn space groups are obtained. "Maximal subgroup" condition is discussed.