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Mode Grüneisen Parameters and Pressure‐Induced Phase Transition of Tetrahedral Compounds
Author(s) -
Kagaya H.Matsuo,
Soma T.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221420111
Subject(s) - tetrahedron , phase transition , materials science , covalent bond , phase (matter) , mode (computer interface) , phonon , thermodynamics , high pressure , condensed matter physics , crystallography , chemistry , physics , organic chemistry , computer science , operating system
Abstract The pressure effect on the phonon frequency, i.e. the mode Grüneisen parameter of AIP, AlAs, and AlSb is studied from the electronic theory of solids. Then, a linear correlation by Weinstein between the TA‐mode Grüneisen parameter γ X TAat the point X and the phase transition pressure P t , is not necessarily satisfied for all of tetrahedral covalent crystals.