Correlation effects for a quasi-one-dimensional polaron gas
In this work, we investigate the plasmon–LO phonon interaction effects on the intrasubband structure factor, electron–electron effective potential, and plasmon energy associated with the lowest subband in a GaAs‐AlGaAs rectangular quantum‐well wire (QWW) as a function of the electronic density. Our...
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| Veröffentlicht in: | Physica Status Solidi (b) 2011-04, Vol.248 (4), p.931-936 |
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| container_title | Physica Status Solidi (b) |
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| creator | Machado, Paulo César Miranda Borges, Antônio Newton Osório, Francisco Aparecido Pinto |
| description | In this work, we investigate the plasmon–LO phonon interaction effects on the intrasubband structure factor, electron–electron effective potential, and plasmon energy associated with the lowest subband in a GaAs‐AlGaAs rectangular quantum‐well wire (QWW) as a function of the electronic density. Our calculations are performed using the self‐consistent field approximation, which includes the local‐field correction (LFC) within the Singwi, Tosi, Land, and Sjolander (STLS) theory, at zero temperature and assuming a three‐subband model, where only the first subband is occupied by electrons. We report for the first time dips in the structure factor spectra as a function of the quasi‐one‐dimensional (Q1D) plasmon–LO phonon wavevector that are directly related with the resonant split of the collective excitation energy into two branches due to the polaronic effects. |
| doi_str_mv | 10.1002/pssb.201046242 |
| format | Article |
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Our calculations are performed using the self‐consistent field approximation, which includes the local‐field correction (LFC) within the Singwi, Tosi, Land, and Sjolander (STLS) theory, at zero temperature and assuming a three‐subband model, where only the first subband is occupied by electrons. We report for the first time dips in the structure factor spectra as a function of the quasi‐one‐dimensional (Q1D) plasmon–LO phonon wavevector that are directly related with the resonant split of the collective excitation energy into two branches due to the polaronic effects.</description><identifier>ISSN: 0370-1972</identifier><identifier>ISSN: 1521-3951</identifier><identifier>EISSN: 1521-3951</identifier><identifier>DOI: 10.1002/pssb.201046242</identifier><identifier>CODEN: PSSBBD</identifier><language>eng</language><publisher>Berlin: WILEY-VCH Verlag</publisher><subject>Approximation ; Collective effects ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; correlation ; Density ; Electron states ; Exact sciences and technology ; Exchange, correlation, dielectric and magnetic functions, plasmons ; GaAlAs ; GaAs ; many-body theory ; Mathematical models ; Methods of electronic structure calculations ; Phonons ; Physics ; plasmon-phonon interactions ; polarons ; Polarons and electron-phonon interactions ; Quantum wells ; Spectra ; Structure factor ; Wire</subject><ispartof>Physica Status Solidi (b), 2011-04, Vol.248 (4), p.931-936</ispartof><rights>Copyright © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3902-fd8a01f02ecbf1b1e75c4424afc3d9ee55a12f3896f84e7432165286bb5a06ff3</citedby><cites>FETCH-LOGICAL-c3902-fd8a01f02ecbf1b1e75c4424afc3d9ee55a12f3896f84e7432165286bb5a06ff3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpssb.201046242$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpssb.201046242$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24028094$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Machado, Paulo César Miranda</creatorcontrib><creatorcontrib>Borges, Antônio Newton</creatorcontrib><creatorcontrib>Osório, Francisco Aparecido Pinto</creatorcontrib><title>Correlation effects for a quasi-one-dimensional polaron gas</title><title>Physica Status Solidi (b)</title><addtitle>phys. stat. sol. 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(b)</addtitle><date>2011-04</date><risdate>2011</risdate><volume>248</volume><issue>4</issue><spage>931</spage><epage>936</epage><pages>931-936</pages><issn>0370-1972</issn><issn>1521-3951</issn><eissn>1521-3951</eissn><coden>PSSBBD</coden><abstract>In this work, we investigate the plasmon–LO phonon interaction effects on the intrasubband structure factor, electron–electron effective potential, and plasmon energy associated with the lowest subband in a GaAs‐AlGaAs rectangular quantum‐well wire (QWW) as a function of the electronic density. Our calculations are performed using the self‐consistent field approximation, which includes the local‐field correction (LFC) within the Singwi, Tosi, Land, and Sjolander (STLS) theory, at zero temperature and assuming a three‐subband model, where only the first subband is occupied by electrons. 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| subjects | Approximation Collective effects Condensed matter: electronic structure, electrical, magnetic, and optical properties correlation Density Electron states Exact sciences and technology Exchange, correlation, dielectric and magnetic functions, plasmons GaAlAs GaAs many-body theory Mathematical models Methods of electronic structure calculations Phonons Physics plasmon-phonon interactions polarons Polarons and electron-phonon interactions Quantum wells Spectra Structure factor Wire |
| title | Correlation effects for a quasi-one-dimensional polaron gas |
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