Multiple-phonon resonant Raman scattering in CuGaxIn1-xS2 single crystals
Identifieur interne : 004F51 ( Main/Repository ); précédent : 004F50; suivant : 004F52Multiple-phonon resonant Raman scattering in CuGaxIn1-xS2 single crystals
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Abstract
In this work it is researched the Raman scattering spectra of CuGaxIn1-xS2 solid compounds for x = 1.0,0.9 and 0.8 at 10-60 K. LO-phonons, 2LO-phonons etc can be observed while going far from the excitation energy (6 phonons of the E symmetry and the phonons of the B1 and B2 symmetry) in the scattering process (Stokes scattering). The intensity of the resonant Raman scattering lines depends on the temperature and on the difference of the excitation energies and the energies of the polariton excitons. It was revealed that the interband Frohlich interaction is a dominant effect in the resonant scattering process E(L) and is related to the multi-phonon modes.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Multiple-phonon resonant Raman scattering in CuGa<sub>x</sub>In<sub>1-x</sub>S<sub>2</sub> single crystals</title><author><name sortKey="Syrbu, N N" uniqKey="Syrbu N">N. N. Syrbu</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Technical University of Moldova, 168 Stefan cel Mare Av</s1><s2>2004 Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>2004 Chisinau</wicri:noRegion></affiliation></author><author><name sortKey="Nemerenco, L L" uniqKey="Nemerenco L">L. L. Nemerenco</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Technical University of Moldova, 168 Stefan cel Mare Av</s1><s2>2004 Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>2004 Chisinau</wicri:noRegion></affiliation></author><author><name sortKey="Dorogan, A V" uniqKey="Dorogan A">A. V. Dorogan</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Technical University of Moldova, 168 Stefan cel Mare Av</s1><s2>2004 Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>2004 Chisinau</wicri:noRegion></affiliation></author><author><name sortKey="Tezlevan, V E" uniqKey="Tezlevan V">V. E. Tezlevan</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Technical University of Moldova, 168 Stefan cel Mare Av</s1><s2>2004 Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>2004 Chisinau</wicri:noRegion></affiliation></author><author><name sortKey="Arama, E" uniqKey="Arama E">E. Arama</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Technical University of Moldova, 168 Stefan cel Mare Av</s1><s2>2004 Chisinau</s2><s3>MDA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Moldavie</country><wicri:noRegion>2004 Chisinau</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">09-0224459</idno><date when="2009">2009</date><idno type="stanalyst">PASCAL 09-0224459 INIST</idno><idno type="RBID">Pascal:09-0224459</idno><idno type="wicri:Area/Main/Corpus">005730</idno><idno type="wicri:Area/Main/Repository">004F51</idno></publicationStmt><seriesStmt><idno type="ISSN">0925-3467</idno><title level="j" type="abbreviated">Opt. mater. : (Amst.)</title><title level="j" type="main">Optical materials : (Amsterdam)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Copper Sulfides</term><term>Excitons</term><term>Gallium Sulfides</term><term>Indium Sulfides</term><term>Luminescence</term><term>Monocrystals</term><term>Optical materials</term><term>Phonon mode</term><term>Polaritons</term><term>Quaternary compounds</term><term>Raman spectra</term><term>Reflectivity</term><term>Resonance Raman scattering</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Polariton</term><term>Exciton</term><term>Luminescence</term><term>Spectre Raman</term><term>Facteur réflexion</term><term>Monocristal</term><term>Mode phonon</term><term>Matériau optique</term><term>Diffusion Raman résonance</term><term>Cuivre Sulfure</term><term>Gallium Sulfure</term><term>Indium Sulfure</term><term>Composé quaternaire</term><term>4270</term><term>7135</term><term>7830</term><term>Cu Ga In S</term><term>7138F</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this work it is researched the Raman scattering spectra of CuGa<sub>x</sub>In<sub>1-x</sub>S<sub>2</sub> solid compounds for x = 1.0,0.9 and 0.8 at 10-60 K. LO-phonons, 2LO-phonons etc can be observed while going far from the excitation energy (6 phonons of the E symmetry and the phonons of the B<sub>1</sub> and B<sub>2</sub> symmetry) in the scattering process (Stokes scattering). The intensity of the resonant Raman scattering lines depends on the temperature and on the difference of the excitation energies and the energies of the polariton excitons. It was revealed that the interband Frohlich interaction is a dominant effect in the resonant scattering process E(L) and is related to the multi-phonon modes.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0925-3467</s0></fA01><fA03 i2="1"><s0>Opt. mater. : (Amst.)</s0></fA03><fA05><s2>31</s2></fA05><fA06><s2>6</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Multiple-phonon resonant Raman scattering in CuGa<sub>x</sub>In<sub>1-x</sub>S<sub>2</sub> single crystals</s1></fA08><fA11 i1="01" i2="1"><s1>SYRBU (N. N.)</s1></fA11><fA11 i1="02" i2="1"><s1>NEMERENCO (L. 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