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Contribution of Exciton Degenerate States to Multiphonon Resonant Raman Scattering
Author(s) -
Riera R.,
Sotolongo O.,
Lang I. G.
Publication year - 1991
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.2221650236
Subject(s) - degenerate energy levels , exciton , raman scattering , physics , atomic physics , scattering , raman spectroscopy , electron , biexciton , quantum , principal quantum number , quantum mechanics , condensed matter physics , quantum dissipation
A general method is given for the determination of multiphonon resonant Raman scattering (MPRRS) cross section when exciton degenerate states occur. The calculation is performed for exciton states with principal quantum number n = 2, when electron and hole effective masses are equal ( m e = m b ). The results obtained can explain the special characteristics of secondary radiation emission spectrum in InBr and InI. It is shown that the MPRRS theory can be constructed on the basis of a classical approach, as for n = 1.