Magnetoexcitons in type-II quantum dots |
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| Authors: | A B Kalameitsev V M Kovalev A O Govorov |
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| Institution: | 1. Institute of Semiconductor Physics, Russian Academy of Sciences, 630090, Novosibirsk, Russia
2. Center for Nanoscience and Sektion Physik, Ludwig-Maximilians-Universit?t, D-80539, München, Germany
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| Abstract: | The ground state of a spatially indirect exciton in type-II quantum dots with a short-range potential acquires nonzero angular
momentum in the presence of a magnetic field oriented perpendicular to the plane of the system. The critical magnetic field
of the transition to a ground state with nonzero angular momentum depends on the radius of the quantum dot. Such a transition
can be observed as quenching of luminescence by a magnetic field in quantum dots of the GaSb/GaAs system, for example.
Pis’ma Zh. éksp. Teor. Fiz. 68, No. 8, 634–637 (25 October 1998) |
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