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First‐Order Raman Scattering in RbCl Containing F‐Centres
Author(s) -
Negi B. B. S.,
Ram P. N.
Publication year - 1984
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.2221230212
Subject(s) - raman spectroscopy , force constant , raman scattering , impurity , spectral line , function (biology) , order (exchange) , chemistry , constant (computer programming) , nearest neighbour , molecular physics , x ray raman scattering , analytical chemistry (journal) , atomic physics , materials science , physics , optics , molecule , quantum mechanics , organic chemistry , finance , chromatography , evolutionary biology , artificial intelligence , computer science , economics , biology , programming language
The first‐order Raman spectra due to F‐centre in RbCl are calculated using a Green's function method. A simple impurity model including changes in nearest neighbour force constants is employed to calculated the Raman spectra in the A 1g , E g , and F 2g modes and the results are compared with available experimental data. A 50% reduction in central force constants gives good account of the experimental values.
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