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Optical lineshape for the A 1 −E transition − comparison of IOA with numerical method
Author(s) -
Muramatsu S.,
Nasu K.
Publication year - 1975
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.2220680237
Subject(s) - physics , phonon , condensed matter physics , range (aeronautics) , computational physics , statistical physics , atomic physics , materials science , composite material
Optical lineshape functions for A 1 −E transitions coupled with phonon modes of a 1 and e symmetries are calculated using the independent ordering approximation (IOA) and the numerical method of Longuet‐Higgins et al. (EXM). The two kinds of results are compared and it is found that the IOA well reproduces qualitatively the peculiar feature of the lineshape of EXM, as long as considering only the global profile of the lineshape and disregarding its possible structure within the range of the phonon frequency. The condition of the validity of IOA is discussed.