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Optical absorption spectra of bipolarons

Devreese, J. T. ; Klimin, S. N. ; Fomin, V. M.

Physical Review B, 4/2001, Vol.63(18) [Periódico revisado por pares]

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  • Título:
    Optical absorption spectra of bipolarons
  • Autor: Devreese, J. T. ; Klimin, S. N. ; Fomin, V. M.
  • Assuntos: Condensed Matter - Strongly Correlated Electrons
  • É parte de: Physical Review B, 4/2001, Vol.63(18)
  • Descrição: The absorption of large bipolarons is investigated using the path-integral method. The response of a bipolaron to an external electromagnetic field is derived in the framework of the memory-function approach. The bipolaron optical absorption spectrum consists of a series of relatively narrow peaks. The peculiarities of the bipolaron optical absorption as a function of the frequency of the electromagnetic field may be attributed to the transitions involving relaxed excited states and scattering states of a bipolaron. Comment: 14 pages, 3 figures, E-mail addresses: devreese@uia.ua.ac.be, fomin@uia.ua.ac.be; to be published in Phys. Rev. B
  • Idioma: Inglês

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