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First‐Principles Thermal Expansion in Rb and Cs
Author(s) -
Prasad B.
Publication year - 1984
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.2221240207
Subject(s) - thermal expansion , thermodynamics , function (biology) , thermal , materials science , chemistry , physics , biology , evolutionary biology
The thermal expansion of Rb and Cs is investigated using Toya's first‐principle approach with modified g ‐function. The mode Grüneisen parameters γ qj and the temperature dependence of both, the mean Grüneisen parameter γ T and the thermal expansion coefficient β T are calculated and compared with the experimental data available up to the present time. The agreement obtained between theory and experiment is satisfactory.