English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/33755
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorCamacho, J.-
dc.contributor.authorCantarero, Andrés-
dc.contributor.authorHernández-Calderón, I.-
dc.contributor.authorGonzález Sotos, Luisa-
dc.identifier.citationJournal of Applied Physics 92(10): 6014 (2002)es_ES
dc.description5 páginas, 4 figuras, 1 tabla.es_ES
dc.description.abstractWe report resonant Raman scattering and photoluminescence (PL) measurements on two ZnTe thin films grown by molecular-beam epitaxy on GaAs substrates with thicknesses around 0.5 and 1.0 μm. The data have been obtained by using the different excitation energies of an Ar+ laser to distinguish Raman from PL and analyze resonant effects. The characteristic features of the low-temperature PL spectra are the light and heavy free exciton emissions, split due to the thermal strain effect, followed by several phonon replicas of these lines. Moreover, longitudinal and transversal polariton splittings of heavy excitons are clearly observed. Their reduced masses have been obtained from the exciton binding energies. Room and low-temperature Raman spectra show, besides the typical longitudinal optical (LO) multiphonon emissions, forbidden zone-center transverse optical (TO)+(n−1)LO phonon combinations, which yield an accurate value for the LO and TO phonon energies. The breakdown of the selection rules is attributed to surface faceting.es_ES
dc.description.sponsorshipOne of the authors (A.C.) wishes to acknowledge the Dirección de Relaciones Internacionales of the University of Valencia for financial support. Another author (I.H.C.) thanks CONACyT-Mexico for partial support.es_ES
dc.publisherAmerican Institute of Physicses_ES
dc.titleRaman spectroscopy and photoluminescence of ZnTe thin films grown on GaAses_ES
dc.description.peerreviewedPeer reviewedes_ES
Appears in Collections:(IMN-CNM) Artículos
Files in This Item:
File Description SizeFormat 
http___scitation.aip.orgi=10.1063_1.pdf82,69 kBAdobe PDFThumbnail
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.