Electrostatic conveyer for excitons

We report on the study of indirect excitons in moving lattices-conveyers created by a set of ac voltages applied to the electrodes on the sample surface. The wavelength of this moving lattice is set by the electrode periodicity, the amplitude is controlled by the applied voltage, and the velocity is...

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Bibliographic Details
Published inPhysical review letters Vol. 106; no. 19; p. 196806
Main Authors Winbow, A G, Leonard, J R, Remeika, M, Kuznetsova, Y Y, High, A A, Hammack, A T, Butov, L V, Wilkes, J, Guenther, A A, Ivanov, A L, Hanson, M, Gossard, A C
Format Journal Article
LanguageEnglish
Published United States 12.05.2011
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Summary:We report on the study of indirect excitons in moving lattices-conveyers created by a set of ac voltages applied to the electrodes on the sample surface. The wavelength of this moving lattice is set by the electrode periodicity, the amplitude is controlled by the applied voltage, and the velocity is controlled by the ac frequency. We found the dynamical localization-delocalization transition for excitons in the conveyers and determined its dependence on exciton density and conveyer amplitude and velocity.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.106.196806