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On the theory of two-dimensional combined magnetoexciton-cyclotron resonances
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics.
2009 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 85, no 5, 57002- p.Article in journal (Refereed) Published
Abstract [en]

A theory of combined exciton-cyclotron resonance in the quantum well structures is developed for a strong magnetic field. The absorption band structure is calculated for optical quantum transitions with circularly polarized radiation creating a two-dimensional exciton and simultaneously exciting one of the resident electrons from the lowest to the first Landau level. The dipole-active transitions are considered in the second-order perturbation theory taking into account as perturbations the electron-photon interaction and the electron-electron Coulomb interaction. In agreement with the experimental observation it is shown that for sigma(-) polarized light the probability of quantum transition is four times larger than for sigma(+) light polarization. Copyright (C) EPLA, 2009

Place, publisher, year, edition, pages
2009. Vol. 85, no 5, 57002- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-129055DOI: 10.1209/0295-5075/85/57002ISI: 000266413700018OAI: oai:DiVA.org:uu-129055DiVA: diva2:337508
Available from: 2010-08-06 Created: 2010-08-05 Last updated: 2010-08-06Bibliographically approved

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