Damped plasma waves in photoexcited plasma in semiconductors

Detalhes bibliográficos
Autor(a) principal: Vasconcellos, Aurea R.
Data de Publicação: 1995
Outros Autores: Luzzi, Roberto, Esperidião, Antônio Sérgio Cavalcante
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13673
Resumo: p. 5021-5029
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spelling Vasconcellos, Aurea R.Luzzi, RobertoEsperidião, Antônio Sérgio CavalcanteVasconcellos, Aurea R.Luzzi, RobertoEsperidião, Antônio Sérgio Cavalcante2013-11-16T13:01:41Z2013-11-16T13:01:41Z19951098-0121http://repositorio.ufba.br/ri/handle/ri/13673v. 52, n. 7p. 5021-5029We analyze the hydrodynamic modes associated with carriers in a photoinjected plasma in a directgap polar semiconductor. In this paper we concentrate our attention on the carrier material motion. Resorting to a mechanostatistical approach to irreversible thermodynamics, the coupled equations of evolution for the charge density of electrons and holes are derived. They have the form of hyperbolic equations which imply collective damped wave propagation. The kinetic coe%cients on which they depend are determined at this mechanostatistical microscopic level. The corresponding hydrodynamic modes are characterized: they consist of, besides the single quasiparticle (electrons and holes) excitations, two collective modes, namely, the acoustical and optical plasma waves. Their dispersion relations and lifetimes are obtained. These hydrodynamic modes are evidenced and further characterized through the calculation and analysis of the spectrum of Raman scattering of radiation by the carriers. The motion of the charge density is analyzed and we show how the damped wave regime goes over to the Fick-like diffusive regime in the limit of very large wavelengths and very low frequencies.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-09-11T20:40:43Z No. of bitstreams: 1 6666666666666666666.pdf: 455182 bytes, checksum: d45cf65fefc8c63e7a0a834431c0bf29 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2013-11-16T13:01:41Z (GMT) No. of bitstreams: 1 6666666666666666666.pdf: 455182 bytes, checksum: d45cf65fefc8c63e7a0a834431c0bf29 (MD5)Made available in DSpace on 2013-11-16T13:01:41Z (GMT). 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dc.title.pt_BR.fl_str_mv Damped plasma waves in photoexcited plasma in semiconductors
dc.title.alternative.pt_BR.fl_str_mv Physical Review B
title Damped plasma waves in photoexcited plasma in semiconductors
spellingShingle Damped plasma waves in photoexcited plasma in semiconductors
Vasconcellos, Aurea R.
title_short Damped plasma waves in photoexcited plasma in semiconductors
title_full Damped plasma waves in photoexcited plasma in semiconductors
title_fullStr Damped plasma waves in photoexcited plasma in semiconductors
title_full_unstemmed Damped plasma waves in photoexcited plasma in semiconductors
title_sort Damped plasma waves in photoexcited plasma in semiconductors
author Vasconcellos, Aurea R.
author_facet Vasconcellos, Aurea R.
Luzzi, Roberto
Esperidião, Antônio Sérgio Cavalcante
author_role author
author2 Luzzi, Roberto
Esperidião, Antônio Sérgio Cavalcante
author2_role author
author
dc.contributor.author.fl_str_mv Vasconcellos, Aurea R.
Luzzi, Roberto
Esperidião, Antônio Sérgio Cavalcante
Vasconcellos, Aurea R.
Luzzi, Roberto
Esperidião, Antônio Sérgio Cavalcante
description p. 5021-5029
publishDate 1995
dc.date.issued.fl_str_mv 1995
dc.date.accessioned.fl_str_mv 2013-11-16T13:01:41Z
dc.date.available.fl_str_mv 2013-11-16T13:01:41Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/13673
dc.identifier.issn.none.fl_str_mv 1098-0121
dc.identifier.number.pt_BR.fl_str_mv v. 52, n. 7
identifier_str_mv 1098-0121
v. 52, n. 7
url http://repositorio.ufba.br/ri/handle/ri/13673
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Physical Review B
publisher.none.fl_str_mv Physical Review B
dc.source.pt_BR.fl_str_mv http://prb-aps-org.ez10.periodicos.capes.gov.br/pdf/PRB/v52/i7/p5021_1
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