Manifestation of Commensurate Orbits in the Magnetoluminescence Spectrum of Electrons in Antidot Arrays

I. V. Kukushkin, D. Weiss, G. Lütjering, R. Bergmann, H. Schweizer, K. v. Klitzing, K. Eberl, P. Rotter, M. Suhrke, and U. Rössler
Phys. Rev. Lett. 79, 1722 – Published 1 September 1997
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Abstract

We present a magneto-optical study of the energy spectrum of two-dimensional electrons subjected to a perpendicular magnetic field in the presence of a square lattice of antidots. Oscillations of the luminescence intensity, measured at the Fermi energy, reproduce structure observed previously in transport experiments ascribed to commensurate cyclotron orbits that fit around a specific number 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 it with model calculations.

  • Received 23 May 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.1722

©1997 American Physical Society

Authors & Affiliations

I. V. Kukushkin1,2, D. Weiss1,3, G. Lütjering1, R. Bergmann5, H. Schweizer5, K. v. Klitzing1, K. Eberl1, P. Rotter4, M. Suhrke4, and U. Rössler4

  • 1Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
  • 2Institute of Solid State Physics, RAS, Chernogolovka, 142432 Russia
  • 3Experimentelle und Angewandte Physik, Universität Regensburg, D-93040 Regensburg, Germany
  • 4Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany
  • 5IV Physikalisches Institut, Universität Stuttgart, D-70569 Stuttgart, Germany

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Vol. 79, Iss. 9 — 1 September 1997

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