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A Green's Function Estimation of Lattice Relaxation for Isovalent Substitutional Defects in Alkali Halide Crystals over the Entire Composition Range
Author(s) -
Roy Paul S. Datta,
Sengupta S.
Publication year - 1990
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.2221620105
Subject(s) - halide , alkali metal , lattice (music) , relaxation (psychology) , range (aeronautics) , chemistry , thermodynamics , materials science , inorganic chemistry , physics , social psychology , psychology , organic chemistry , acoustics , composite material
A Green's function calculation is presented for dilute concentration isovalent substitutional defects in alkali halides. A simple model is suggested to extend this calculation to the high concentration range. Comparing the values of lattice relaxation obtained from this estimation to EXAFS measurement, a very good agreement is noticed over the entire composition range.