Dielectric function spectra from a nondegenerate polaron gas

Barboza, Carlos A.; Albuquerque, Eudenilson Lins de; Feitosa, Carlos Chesman de Araújo; Freire, V.N.

Dielectric function spectra from a nondegenerate polaron gas

Página do item simplificado Estatísticas

dc.contributor.author	Barboza, Carlos A.
dc.contributor.author	Albuquerque, Eudenilson Lins de
dc.contributor.author	Feitosa, Carlos Chesman de Araújo
dc.contributor.author	Freire, V.N.
dc.date.accessioned	2020-07-03T14:02:52Z
dc.date.available	2020-07-03T14:02:52Z
dc.date.issued	2007-02-07
dc.description.resumo	A Green function formalism is employed to perform an analytical calculation of the dielectric function due to an electron–phonon interaction within a Hartree–Fock approximation. Our theoretical approach is based on the polar or Fröhlich type of electron–phonon interaction, with the electronic hopping between the first-neighbor, to characterize the polaron model. Our numerical results for the dielectric function profile show resonant peaks, all of them at lower frequencies than the main one, attributed to the polaron crossover regime between the quasi free-electrons and the small polarons	pt_BR
dc.identifier.citation	BARBOZA, Carlos Alberto ; ALBUQUERQUE, Eudenilson Lins de ; FEITOSA, Carlos Chesman de Araújo; FREIRE, Valder . Dielectric Function Spectra from a Nondegenerate Polaron Gas. Physics Letters A, v. 365, p. 478-482, 2007. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0375960107001673. Acesso em: 17 maio 2020. https://doi.org/10.1016/j.physleta.2007.01.043	pt_BR
dc.identifier.doi	10.1016/j.physleta.2007.01.043
dc.identifier.doi	0375-9601
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29428
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Small polarons	pt_BR
dc.subject	Dielectric response function	pt_BR
dc.subject	Electron–phonon interaction	pt_BR
dc.subject	Linear response function	pt_BR
dc.title	Dielectric function spectra from a nondegenerate polaron gas	pt_BR
dc.type	article	pt_BR