Inter-subband structure factor for a quasi-one-dimensional polaron gas

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dc.creatorMachado, Paulo César Miranda
dc.creatorOsorio, Francisco Aparecido Pinto
dc.creatorBorges, Antonio Newton
dc.date.accessioned2023-12-13T12:40:11Z
dc.date.available2023-12-13T12:40:11Z
dc.date.issued2016
dc.description.abstractIn this work, the collective excitation spectra of quasi-one-dimensional plasmon in a rectangular GaAs quantum wire is investigated. Our calculations are performed within the Singwi, Tosi, Land and Sjölander (STLS) self-consistent theory taking into account the plasmon–longitudinal optical (LO) phonon coupling effects. We have employed a three subband model with only the first subband occupied by electrons and we have considered intra-subband and inter-subband transitions. We show that the polaronic effects cause the appearance of dips and oscillations in the static structure factor dispersion relation, which are directly related with the oscillator strength transfer between the collective excitation energy branches. We have also observed oscillations in the pair-correlation function that are characteristic of inter-subband transitions and it denotes partial localization of the particle.
dc.identifier.citationMACHADO, Paulo César Miranda; OSÓRIO, Francisco Aparecido Pinto; BORGES, Antônio Newton. Inter-subband structure factor for a quasi-one-dimensional polaron gas. International Journal of Modern Physics B, Hackensack, v. 30, n. 30, e1650218, 2016. DOI: 10.1142/S0217979216502180. Disponível em: https://www.worldscientific.com/doi/10.1142/S0217979216502180. Acesso em: 14 set. 2023.
dc.identifier.doi10.1142/S0217979216502180
dc.identifier.issn0217-9792
dc.identifier.issne- 1793-6578
dc.identifier.urihttps://www.worldscientific.com/doi/10.1142/S0217979216502180
dc.language.isoeng
dc.publisher.countryEstados unidos
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.subjectPlasmon–phonon interaction
dc.subjectGaAs quantum wire
dc.titleInter-subband structure factor for a quasi-one-dimensional polaron gas
dc.typeArtigo

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