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Magnetoexcitons in quantum-ring structures: a novel magnetic interference effect

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
12
Identifiers
DOI: 10.1016/s1386-9477(01)00424-6
Keywords
  • Quantum Interference
  • Magnetoexcitons
  • Photoluminescence
Disciplines
  • Physics

Abstract

Abstract A novel magnetic interference effect is proposed for a neutral, but polarizable exciton in a quantum ring with a finite width. The magnetic interference effect originates from the nonzero dipole moment in the exciton. The ground state of exciton acquires a nonzero angular momentum with increasing normal magnetic field. This leads to the suppression of the photoluminescence in defined windows of the magnetic field.

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