Thermopower of YbIn1-xAgxCu4 alloys (x≤0.275)
Identifieur interne : 00FE74 ( Main/Repository ); précédent : 00FE73; suivant : 00FE75Thermopower of YbIn1-xAgxCu4 alloys (x≤0.275)
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Abstract
We report results of thermopower measurements of the YbIn1-xAgxCu4 alloys (x=0, 0.15, and 0.275) and of the nonmagnetic LuInCu4 compound. The thermopower investigations are complemented by resistivity and ac-susceptibility measurements. The results are explained within a two-phase model with different characteristic temperatures. For x=0.15, one can observe Fermi liquid behavior up to 20 K: the -a1T dependence of the thermopower and the ρ01+b1T2 dependence of the resistivity. For higher temperatures approaching the valence transition temperature Tv, the resistivity can be described by ρ02+b2T3, while the thermopower is again proportional to T. Similar trends are observed for other values of x as well.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Thermopower of YbIn<sub>1-x</sub>Ag<sub>x</sub>Cu<sub>4</sub> alloys (x≤0.275)</title><author><name sortKey="Ocko, M" uniqKey="Ocko M">M. Ocko</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, p.p. 304, 10000 Zagreb, Croatia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country xml:lang="fr">Croatie</country><wicri:regionArea>Institute of Physics, p.p. 304, 10000 Zagreb</wicri:regionArea><wicri:noRegion>10000 Zagreb</wicri:noRegion></affiliation><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Los Alamos National Laboratory, Mail Stop K 764, Los Alamos, New Mexico 87545</s1></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Nouveau-Mexique</region></placeName><wicri:cityArea>Los Alamos National Laboratory, Mail Stop K 764, Los Alamos</wicri:cityArea></affiliation><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>National High Magnetic Field Laboratory, Tallahassee, Florida 32306</s1></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Floride</region></placeName><wicri:cityArea>National High Magnetic Field Laboratory, Tallahassee</wicri:cityArea></affiliation></author><author><name sortKey="Drobac, Dj" uniqKey="Drobac D">Dj. Drobac</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, p.p. 304, 10000 Zagreb, Croatia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country xml:lang="fr">Croatie</country><wicri:regionArea>Institute of Physics, p.p. 304, 10000 Zagreb</wicri:regionArea><wicri:noRegion>10000 Zagreb</wicri:noRegion></affiliation></author><author><name sortKey="Sarrao, J L" uniqKey="Sarrao J">J. L. Sarrao</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, p.p. 304, 10000 Zagreb, Croatia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country xml:lang="fr">Croatie</country><wicri:regionArea>Institute of Physics, p.p. 304, 10000 Zagreb</wicri:regionArea><wicri:noRegion>10000 Zagreb</wicri:noRegion></affiliation></author><author><name sortKey="Fisk, Z" uniqKey="Fisk Z">Z. Fisk</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, p.p. 304, 10000 Zagreb, Croatia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country xml:lang="fr">Croatie</country><wicri:regionArea>Institute of Physics, p.p. 304, 10000 Zagreb</wicri:regionArea><wicri:noRegion>10000 Zagreb</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">01-0337240</idno><date when="2001-08-15">2001-08-15</date><idno type="stanalyst">PASCAL 01-0337240 AIP</idno><idno type="RBID">Pascal:01-0337240</idno><idno type="wicri:Area/Main/Corpus">010C22</idno><idno type="wicri:Area/Main/Repository">00FE74</idno></publicationStmt><seriesStmt><idno type="ISSN">1098-0121</idno><title level="j" type="abbreviated">Phys. rev., B, Condens. matter mater. phys.</title><title level="j" type="main">Physical review. B, Condensed matter and materials physics</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Copper alloys</term><term>Experimental study</term><term>Fermi liquid</term><term>Indium alloys</term><term>Silver alloys</term><term>Thermoelectric power</term><term>Ytterbium alloys</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>7215J</term><term>7520H</term><term>Etude expérimentale</term><term>Ytterbium alliage</term><term>Indium alliage</term><term>Argent alliage</term><term>Cuivre alliage</term><term>Pouvoir thermoélectrique</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We report results of thermopower measurements of the YbIn<sub>1-x</sub>Ag<sub>x</sub>Cu<sub>4</sub> alloys (x=0, 0.15, and 0.275) and of the nonmagnetic LuInCu<sub>4</sub> compound. The thermopower investigations are complemented by resistivity and ac-susceptibility measurements. The results are explained within a two-phase model with different characteristic temperatures. For x=0.15, one can observe Fermi liquid behavior up to 20 K: the -a<sub>1</sub>T dependence of the thermopower and the ρ<sub>01</sub>+b<sub>1</sub>T<sup>2</sup> dependence of the resistivity. For higher temperatures approaching the valence transition temperature T<sub>v</sub>, the resistivity can be described by ρ<sub>02</sub>+b<sub>2</sub>T<sup>3</sup>, while the thermopower is again proportional to T. Similar trends are observed for other values of x as well.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1098-0121</s0></fA01><fA02 i1="01"><s0>PRBMDO</s0></fA02><fA03 i2="1"><s0>Phys. rev., B, Condens. matter mater. phys.</s0></fA03><fA05><s2>64</s2></fA05><fA06><s2>8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Thermopower of YbIn<sub>1-x</sub>Ag<sub>x</sub>Cu<sub>4</sub> alloys (x≤0.275)</s1></fA08><fA11 i1="01" i2="1"><s1>OCKO (M.)</s1></fA11><fA11 i1="02" i2="1"><s1>DROBAC (Dj.)</s1></fA11><fA11 i1="03" i2="1"><s1>SARRAO (J. L.)</s1></fA11><fA11 i1="04" i2="1"><s1>FISK (Z.)</s1></fA11><fA14 i1="01"><s1>Institute of Physics, p.p. 304, 10000 Zagreb, Croatia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA14><fA14 i1="02"><s1>Los Alamos National Laboratory, Mail Stop K 764, Los Alamos, New Mexico 87545</s1></fA14><fA14 i1="03"><s1>National High Magnetic Field Laboratory, Tallahassee, Florida 32306</s1></fA14><fA20><s2>085103-085103-5</s2></fA20><fA21><s1>2001-08-15</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>144 B</s2></fA43><fA44><s0>8100</s0><s1>© 2001 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>01-0337240</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physical review. B, Condensed matter and materials physics</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>We report results of thermopower measurements of the YbIn<sub>1-x</sub>Ag<sub>x</sub>Cu<sub>4</sub> alloys (x=0, 0.15, and 0.275) and of the nonmagnetic LuInCu<sub>4</sub> compound. The thermopower investigations are complemented by resistivity and ac-susceptibility measurements. The results are explained within a two-phase model with different characteristic temperatures. For x=0.15, one can observe Fermi liquid behavior up to 20 K: the -a<sub>1</sub>T dependence of the thermopower and the ρ<sub>01</sub>+b<sub>1</sub>T<sup>2</sup> dependence of the resistivity. For higher temperatures approaching the valence transition temperature T<sub>v</sub>, the resistivity can be described by ρ<sub>02</sub>+b<sub>2</sub>T<sup>3</sup>, while the thermopower is again proportional to T. 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