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Effective Electron‐Hole Interaction for Intermediate and Strong Electron‐Phonon Coupling A Comment
Author(s) -
Bajaj K. K.,
Aldrich C.
Publication year - 1977
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.2220820232
Subject(s) - binding energy , electron , halide , exciton , coupling (piping) , polar , phonon , condensed matter physics , physics , wannier function , atomic physics , chemistry , materials science , quantum mechanics , inorganic chemistry , metallurgy
Abstract The values are calculated of the binding energy of a Wannier exciton in several polar crystals including thallous halides and cuprous chloride using both the potential derived by Barentzen and Haken's potential. It is found, contrary to what is claimed by Barentzen, that the values of the binding energy obtained from these two different effective interaction potentials hardly differ from each other. The reason why this is so is discussed.