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VOLUME 32 (1980) | ISSUE 5 | PAGE 352
Fine structure of the levels of a bound exciton and multiexciton complexes in germanium
A model, discovered recently by Mayer and Lightowlers,1 which can explain the fine structure of an exciton bound by a neutral donor in germanium, is proposed. The indicated level splitting is attributable to the fact that, in addition to orbit-valley interaction, the exchange-valley splitting and crystalline splitting, play an essential role in germanium, in contrast with silicon.