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A lattice dynamical study of potassium halide solids
Author(s) -
Singh R. P.
Publication year - 1979
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.2220920227
Subject(s) - halide , van der waals force , phonon , raman spectroscopy , potassium , chemistry , debye model , lattice (music) , debye , shell model , dispersion (optics) , zero point energy , condensed matter physics , thermodynamics , physics , atomic physics , inorganic chemistry , quantum mechanics , molecule , organic chemistry , acoustics
The contributions of the van der Waal's interaction and the zero‐point energy are incorporated in the dynamical matrix of the three‐body force shell model. The modified model is applied to the study of the dispersion of phonons, Debye temperature, and Raman spectra in the case of potassium halides. The study shows excellent agreement between the theoretical and experimental values.