Brillouin scattering study of the pseudosurface acoustic mode on the (110) face of cubic crystals having elastic anisotropy ratio above unity
Identifieur interne : 001420 ( Russie/Analysis ); précédent : 001419; suivant : 001421Brillouin scattering study of the pseudosurface acoustic mode on the (110) face of cubic crystals having elastic anisotropy ratio above unity
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Abstract
We report the experimental observation of a pseudosurface mode in (110)-cut cubic crystals having the anisotropy ratio η = 2C44/(C11-C12)>1, where C11, C12, and C44 are elastic constants. The measurements have been performed with Brillouin light-scattering spectroscopy for GaAs, InSb, Ge, and InAs crystals. Results are shown for GaAs and InSb. An additional Brillouin satellite has been observed in the bulk velocity range for general propagation directions on the (110) plane; this peak is attributed to the presence of the pseudosurface mode. For all the crystals investigated, we have found that the pseudosurface mode exists for propagation directions within the range θ = *.+.or.-.*55°, where θ is the azimuthal angle measured from the [001] crystal axis. The results of calculations of the light-scattering cross section and of the propagation velocity of the pseudosurface mode are in a good agreement with the measurements.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Brillouin scattering study of the pseudosurface acoustic mode on the (110) face of cubic crystals having elastic anisotropy ratio above unity</title><author><name sortKey="Aleksandrov, V V" uniqKey="Aleksandrov V">V. V. Aleksandrov</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow, Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Russie</country><wicri:regionArea>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Gladkevitch, A" uniqKey="Gladkevitch A">A. Gladkevitch</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow, Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Russie</country><wicri:regionArea>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Mozhaev, V G" uniqKey="Mozhaev V">V. G. Mozhaev</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow, Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">Russie</country><wicri:regionArea>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Giovannini, L" uniqKey="Giovannini L">L. Giovannini</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Dipartimento di Fisica, Università di Ferrara, and Consorzio Interuniversitario Nazionale per la Fisica della Materia, Via Paradiso 12, I-44100 Ferrara, Italy</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Fisica, Università di Ferrara, and Consorzio Interuniversitario Nazionale per la Fisica della Materia, Via Paradiso 12, I-44100 Ferrara</wicri:regionArea><wicri:noRegion>I-44100 Ferrara</wicri:noRegion></affiliation></author><author><name sortKey="Nizzoli, F" uniqKey="Nizzoli F">F. Nizzoli</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Dipartimento di Fisica, Università di Ferrara, and Consorzio Interuniversitario Nazionale per la Fisica della Materia, Via Paradiso 12, I-44100 Ferrara, Italy</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country xml:lang="fr">Italie</country><wicri:regionArea>Dipartimento di Fisica, Università di Ferrara, and Consorzio Interuniversitario Nazionale per la Fisica della Materia, Via Paradiso 12, I-44100 Ferrara</wicri:regionArea><wicri:noRegion>I-44100 Ferrara</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">94-0496467</idno><date when="1994-08-15">1994-08-15</date><idno type="stanalyst">PASCAL 94-0496467 AIP</idno><idno type="RBID">Pascal:94-0496467</idno><idno type="wicri:Area/Main/Corpus">01E415</idno><idno type="wicri:Area/Main/Repository">01D555</idno><idno type="wicri:Area/Russie/Extraction">001420</idno></publicationStmt><seriesStmt><idno type="ISSN">0021-8979</idno><title level="j" type="abbreviated">J. Appl. Phys.</title><title level="j" type="main">Journal of Applied Physics</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic surface waves</term><term>Anisotropy</term><term>Brillouin effect</term><term>Crystal faces</term><term>Cubic lattices</term><term>Elastic constants</term><term>Experimental study</term><term>Gallium arsenides</term><term>Germanium</term><term>Indium antimonides</term><term>Indium arsenides</term><term>Theoretical study</term><term>Velocity</term><term>Wave propagation</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Etude théorique</term><term>6835G</term><term>6835J</term><term>7835</term><term>Réseau cubique</term><term>Effet Brillouin</term><term>Onde acoustique surface</term><term>Constantes élasticité</term><term>Anisotropie</term><term>Face cristalline</term><term>Gallium arséniure</term><term>Indium antimoniure</term><term>Indium arséniure</term><term>Germanium</term><term>Propagation onde</term><term>Vitesse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We report the experimental observation of a pseudosurface mode in (110)-cut cubic crystals having the anisotropy ratio η = 2C<sub>44</sub>/(C<sub>11</sub>-C<sub>12</sub>)>1, where C<sub>11</sub>, C<sub>12</sub>, and C<sub>44</sub> are elastic constants. The measurements have been performed with Brillouin light-scattering spectroscopy for GaAs, InSb, Ge, and InAs crystals. Results are shown for GaAs and InSb. An additional Brillouin satellite has been observed in the bulk velocity range for general propagation directions on the (110) plane; this peak is attributed to the presence of the pseudosurface mode. For all the crystals investigated, we have found that the pseudosurface mode exists for propagation directions within the range θ = *.+.or.-.*55°, where θ is the azimuthal angle measured from the [001] crystal axis. The results of calculations of the light-scattering cross section and of the propagation velocity of the pseudosurface mode are in a good agreement with the measurements.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0021-8979</s0></fA01><fA02 i1="01"><s0>JAPIAU</s0></fA02><fA03 i2="1"><s0>J. Appl. Phys.</s0></fA03><fA05><s2>76</s2></fA05><fA06><s2>4</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Brillouin scattering study of the pseudosurface acoustic mode on the (110) face of cubic crystals having elastic anisotropy ratio above unity</s1></fA08><fA11 i1="01" i2="1"><s1>ALEKSANDROV (V. V.)</s1></fA11><fA11 i1="02" i2="1"><s1>GLADKEVITCH (A.)</s1></fA11><fA11 i1="03" i2="1"><s1>MOZHAEV (V. G.)</s1></fA11><fA11 i1="04" i2="1"><s1>GIOVANNINI (L.)</s1></fA11><fA11 i1="05" i2="1"><s1>NIZZOLI (F.)</s1></fA11><fA14 i1="01"><s1>Chair for Crystallophysics and Chair for Acoustics, Physics Department, Moscow State University, 117234 Moscow, Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Dipartimento di Fisica, Università di Ferrara, and Consorzio Interuniversitario Nazionale per la Fisica della Materia, Via Paradiso 12, I-44100 Ferrara, Italy</s1><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>2176-2180</s1></fA20><fA21><s1>1994-08-15</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>126</s2></fA43><fA44><s0>8100</s0><s1>© AIP</s1></fA44><fA47 i1="01" i2="1"><s0>94-0496467</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of Applied Physics</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>We report the experimental observation of a pseudosurface mode in (110)-cut cubic crystals having the anisotropy ratio η = 2C<sub>44</sub>/(C<sub>11</sub>-C<sub>12</sub>)>1, where C<sub>11</sub>, C<sub>12</sub>, and C<sub>44</sub> are elastic constants. The measurements have been performed with Brillouin light-scattering spectroscopy for GaAs, InSb, Ge, and InAs crystals. Results are shown for GaAs and InSb. An additional Brillouin satellite has been observed in the bulk velocity range for general propagation directions on the (110) plane; this peak is attributed to the presence of the pseudosurface mode. For all the crystals investigated, we have found that the pseudosurface mode exists for propagation directions within the range θ = *.+.or.-.*55°, where θ is the azimuthal angle measured from the [001] crystal axis. The results of calculations of the light-scattering cross section and of the propagation velocity of the pseudosurface mode are in a good agreement with the measurements.</s0></fC01><fC02 i1="01" i2="3"><s0>001B60H35G</s0></fC02><fC02 i1="02" i2="3"><s0>001B60H35J</s0></fC02><fC02 i1="03" i2="3"><s0>001B70H35</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Etude expérimentale</s0></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Experimental study</s0></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Etude théorique</s0></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Theoretical study</s0></fC03><fC03 i1="03" i2="3" l="FRE"><s0>6835G</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="04" i2="3" l="FRE"><s0>6835J</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="05" i2="3" l="FRE"><s0>7835</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Réseau cubique</s0><s2>T1</s2></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Cubic lattices</s0><s2>T1</s2></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Effet Brillouin</s0></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Brillouin effect</s0></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Onde acoustique surface</s0><s2>Q1</s2></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Acoustic surface waves</s0><s2>Q1</s2></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Constantes élasticité</s0></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Elastic constants</s0></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Anisotropie</s0></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Anisotropy</s0></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Face cristalline</s0></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Crystal faces</s0></fC03><fC03 i1="12" i2="3" l="FRE"><s0>Gallium arséniure</s0><s2>NK</s2></fC03><fC03 i1="12" i2="3" l="ENG"><s0>Gallium arsenides</s0><s2>NK</s2></fC03><fC03 i1="13" i2="3" l="FRE"><s0>Indium antimoniure</s0><s2>NK</s2></fC03><fC03 i1="13" i2="3" l="ENG"><s0>Indium antimonides</s0><s2>NK</s2></fC03><fC03 i1="14" i2="3" l="FRE"><s0>Indium arséniure</s0><s2>NK</s2></fC03><fC03 i1="14" i2="3" l="ENG"><s0>Indium arsenides</s0><s2>NK</s2></fC03><fC03 i1="15" i2="3" l="FRE"><s0>Germanium</s0><s2>NC</s2></fC03><fC03 i1="15" i2="3" l="ENG"><s0>Germanium</s0><s2>NC</s2></fC03><fC03 i1="16" i2="3" l="FRE"><s0>Propagation onde</s0></fC03><fC03 i1="16" i2="3" l="ENG"><s0>Wave propagation</s0></fC03><fC03 i1="17" i2="3" l="FRE"><s0>Vitesse</s0></fC03><fC03 i1="17" i2="3" l="ENG"><s0>Velocity</s0></fC03><fN21><s1>229</s1></fN21><fN47 i1="01" i2="1"><s0>9415M0662</s0></fN47></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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