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Elastic‐Stiffness Constants under Pressure of CsK, CsRb, and RbK Solid Solutions
Author(s) -
Soma T.,
Kimura Y.,
Kagaya H.Matsuo
Publication year - 1982
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.2221110232
Subject(s) - thermodynamics , alloy , solid solution , chemistry , materials science , analytical chemistry (journal) , crystallography , physics , metallurgy , chromatography
The shear elastic constants C 44 and C ′ = ( C 11 ‐ C 12 )/2 under pressure of the Cs 1‐ x K x , Cs 1‐ x Rb x , and Rb 1‐ x K x systems are investigated theoretically using the pseudo‐alloy atom model and the local Heine‐Abarenkov model potential. The pressure‐derivatives d B /d P , d C 44 /d P , and d C ′/d P have a maximum as function of the atomic fraction x , and decrease under compression from the data at low pressures, especially for shear coefficients.