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Analysis of Electronic Polarizabilities in Ionic Crystals
Author(s) -
Dikshit U. C.,
Kumar M.
Publication year - 1991
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.2221650231
Subject(s) - halide , ionic bonding , alkali metal , dielectric , ion , electronic structure , state (computer science) , materials science , chemistry , computational chemistry , thermodynamics , chemical physics , condensed matter physics , atomic physics , inorganic chemistry , physics , mathematics , organic chemistry , optoelectronics , algorithm
The existing sets of additive electronic polarizabilities for alkali halides and alkaline earth chalcogenides are examined by evaluating the high frequency electronic dielectric constants and presenting a comparison with experimental data. The crystalline state values of polarizabilities are also compared with free ion values. Various physical effects responsible for changing the values of polarizabilities in the crystalline state are discussed. The differences in free state and crystalline state polarizabilities are investigated in terms of the classical model due to Havinga and quantum mechanical model due to Yamashita and Kurosawa.