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Manifestation of commensurate orbits in the magnetoluminescence spectrum of electrons in antidot arrays

Kukushkin, I. ; Weiss, Dieter ; Lütjering, Gerd ; Bergmann, R. ; Klitzing, Klaus von ; Eberl, K. ; Rotter, Peter ; Suhrke, Michael ; Rössler, Ulrich
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Date of publication of this fulltext: 05 Aug 2009 13:28


Abstract

We present a magnetooptical study of the energy spectrum of two-dimensional electrons subjected to a perpendicular magnetic field in the presence of a square lattice of antidots. We demonstrate that commensurability features in the luminescence intensity can be observed below the Fermi energy leading to a quadratic dependence of their spectral positions on the applied magnetic field. The possible origin of this novel effect will be discussed by comparing with model calculations.


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