Wave-vector-dependent exciton exchange interaction.
نویسندگان
چکیده
The 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.
منابع مشابه
Wave - vector - dependent exchange interaction and its relevance for the effective exciton mass in Cu
The wave-vector dependence of electron-hole exchange interaction is investigated. For the yellow 1S exciton in Cu2O the exchange is derived up to the order k 2. The theoretical predictions are verified experimentally by high-resolution absorption experiments. In agreement with theory the fine structure shows a characteristic dependence on the direction of the wave vector. The exchange splitting...
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ورودعنوان ژورنال:
- Physical review letters
دوره 91 10 شماره
صفحات -
تاریخ انتشار 2003