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Lattice vibrations of lithium on model pseudopotential
Author(s) -
Kushwaha S. S.
Publication year - 1973
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.2220590127
Subject(s) - pseudopotential , compressibility , lattice vibration , phonon , transverse plane , condensed matter physics , physics , lattice (music) , lithium (medication) , vibration , thermodynamics , quantum mechanics , medicine , structural engineering , endocrinology , acoustics , engineering
A two parameter model pseudopotential is used to calculate the phonon frequencies along the symmetry directions for lithium. The calculated frequencies are in good qualitative agreement with the experiment, except the observed crossing of the longitudinal and transverse branches along the [100] direction. Grüneisen parameter, compressibility, and binding energy have also been calculated and compared with available experimental results.