Wave-Vector-Dependent Exciton Exchange Interaction
2003; American Physical Society; Volume: 91; Issue: 10 Linguagem: Inglês
10.1103/physrevlett.91.107401
ISSN1092-0145
AutoresG. Dasbach, D. Fröhlich, H. Stolz, Robert Klieber, Dieter Suter, M. Bayer,
Tópico(s)Quantum and electron transport phenomena
ResumoThe exchange interaction for the yellow 1S orthoexciton in Cu2O is derived up to the order K2. The resulting exchange splittings are verified experimentally using high resolution spectroscopy. In agreement with theory the fine structure shows a characteristic dependence on the direction of the wave vector.
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