Abstract
It is shown that q absorption lines arise in two-dimensional crystal lattices at a rational fractional number p/q of magnetic-field flux quanta per electron. The absorption lines correspond to different exciton formation energies and are determined by the electron-hole Coulomb interaction. The number of the absorption lines is calculated for electron densities corresponding to the fractional quantum Hall effect.
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Original Russian Text © S.V. Iordanskiĭ, A.B. Kashuba, 2006, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2006, Vol. 84, No. 10, pp. 652–655.
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Iordanskiĭ, S.V., Kashuba, A.B. Exciton spectrum for two-dimensional electron systems at fractional occupation numbers of the Landau levels. Jetp Lett. 84, 556–559 (2007). https://doi.org/10.1134/S0021364006220061
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DOI: https://doi.org/10.1134/S0021364006220061