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Effects of Degenerate Bands and Different Hole Masses on Direct Excitons
Author(s) -
Khan M. A.
Publication year - 1973
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.2220600220
Subject(s) - exciton , degenerate energy levels , valence (chemistry) , degeneracy (biology) , valence band , series (stratigraphy) , diamond , condensed matter physics , chemistry , molecular physics , materials science , physics , band gap , quantum mechanics , geology , paleontology , bioinformatics , organic chemistry , biology
The study of the effect of the degeneracy of the valence band on the exciton series, by Baldereschi and Lipari, has been extended to include the possibility when the two series (originating from the two spin‐orbit split off valence bands), in diamond and zinc‐blende structure crystals, do not have the same effective Rydbergs. A theoretical study developed in this paper is applied to the exciton spectrum of CuBr. The calculated values are found to be in good agreement with the experimental data.