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VOLUME 45 (1987) | ISSUE 6 | PAGE 301
Broadening of an exciton line in solid solutions with a degenerate valence band
The broadening of an exciton line in a solid solution with a degenerate valence band is shown to be anomalously large if the translational mass of the exciton is negative. This broadening is determined by the scattering of the exciton by composition fluctuations with a large momentum transfer.