Premium
Lattice dynamics and thermal properties of simple metals based on model pseudopotential calculations
Author(s) -
Prasad B.,
Srivastava R. S.
Publication year - 1977
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.2220800144
Subject(s) - pseudopotential , rubidium , caesium , phonon , simple (philosophy) , condensed matter physics , lattice (music) , materials science , wave vector , thermal , thermodynamics , physics , chemistry , inorganic chemistry , potassium , metallurgy , philosophy , epistemology , acoustics
Abstract The phonon frequencies and Grüneisen parameters are calculated for different values of the phonon wave vector in the three principal symmetry directions for b.c.c. rubidium and cesium using a new form of the local model potential proposed by Krasko and Gurskii. The average values of the Grüneisen parameter γ M are also calculated for different temperatures and the results are compared with available experimental and theoretical results.