Unusual Behavior of the Lattice Thermal Conductivity and of the Lorenz Number in the YbIn1 - xCu4 + x System
Identifieur interne : 000733 ( Russie/Analysis ); précédent : 000732; suivant : 000734Unusual Behavior of the Lattice Thermal Conductivity and of the Lorenz Number in the YbIn1 - xCu4 + x System
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Abstract
Samples of various compositions were obtained in the homogeneity range of the Yb-In-Cu system (YbIn1 - xCu4 + x), from stoichiometric (YbInCu4) to YbIn0.905Cu4.095. Their lattice constant (at 300 K and in the range 20-100 K), total thermal conductivity, and electrical resistivity (from 4 to 300 K) were measured. All the compositions studied exhibited an isostructural phase transition at Tv ≃ 40-80 K driven by a change in the Yb ion valence state. It was shown that within the YbIn1 - xCu4 + x homogeneity range, the lattice thermal conductivity κph decreases with increasing x; at T > Tv , κph grows with temperature and the Lorenz number (which enters the Wiedemann-Franz law for the electronic component of thermal conductivity) of the light heavy-fermion system, to which YbIn1 - xCu4 + x belongs for T < Tv , behaves as it does in classical heavy-fermion systems. Thermal cycling performed through Tv generates stresses in the YbIn1 - xCu4 + x lattice, which entails an increase in the electrical resistivity and a decrease in the thermal conductivity. Soft anneal (prolonged room-temperature aging of samples) makes the effect disappear. A conclusion is drawn as to the nature of the effects observed. © 2002 MAIK Nauka / Interperiodica .
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Unusual Behavior of the Lattice Thermal Conductivity and of the Lorenz Number in the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> System</title><author><name sortKey="Parfeneva, L S" uniqKey="Parfeneva L">L. S. Parfeneva</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">Russie</country><wicri:regionArea>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg</wicri:regionArea><wicri:noRegion>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 Russia</wicri:noRegion></affiliation></author><author><name sortKey="Smirnov, I A" uniqKey="Smirnov I">I. A. Smirnov</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">Russie</country><wicri:regionArea>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg</wicri:regionArea><wicri:noRegion>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 Russia</wicri:noRegion></affiliation></author><author><name sortKey="Misiorek, H" uniqKey="Misiorek H">H. Misiorek</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950, Poland</s1><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950</wicri:regionArea><wicri:noRegion>Wroclaw 50-950</wicri:noRegion></affiliation></author><author><name sortKey="Mucha, J" uniqKey="Mucha J">J. Mucha</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950, Poland</s1><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950</wicri:regionArea><wicri:noRegion>Wroclaw 50-950</wicri:noRegion></affiliation></author><author><name sortKey="Jezowski, A" uniqKey="Jezowski A">A. Jezowski</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950, Poland</s1><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950</wicri:regionArea><wicri:noRegion>Wroclaw 50-950</wicri:noRegion></affiliation></author><author><name sortKey="Ritter, F" uniqKey="Ritter F">F. Ritter</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Goethe University, Frankfurt-am-Main, 60-054 Germany</s1><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country xml:lang="fr">Allemagne</country><wicri:regionArea>Goethe University, Frankfurt-am-Main</wicri:regionArea><wicri:noRegion>60-054 Germany</wicri:noRegion><wicri:noRegion>Goethe University, Frankfurt-am-Main, 60-054 Germany</wicri:noRegion></affiliation></author><author><name sortKey="Assmus, W" uniqKey="Assmus W">W. Assmus</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Goethe University, Frankfurt-am-Main, 60-054 Germany</s1><sZ>6 aut.</sZ><sZ>7 aut.</sZ></inist:fA14><country xml:lang="fr">Allemagne</country><wicri:regionArea>Goethe University, Frankfurt-am-Main</wicri:regionArea><wicri:noRegion>60-054 Germany</wicri:noRegion><wicri:noRegion>Goethe University, Frankfurt-am-Main, 60-054 Germany</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">02-0384192</idno><date when="2002-07">2002-07</date><idno type="stanalyst">PASCAL 02-0384192 AIP</idno><idno type="RBID">Pascal:02-0384192</idno><idno type="wicri:Area/Main/Corpus">00EE71</idno><idno type="wicri:Area/Main/Repository">00E071</idno><idno type="wicri:Area/Russie/Extraction">000733</idno></publicationStmt><seriesStmt><idno type="ISSN">1063-7834</idno><title level="j" type="abbreviated">Phys. solid state</title><title level="j" type="main">Physics of the solid state</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Copper alloys</term><term>Electrical conductivity</term><term>Experimental study</term><term>Heavy fermion systems</term><term>Indium alloys</term><term>Phase transformations</term><term>Stoichiometry</term><term>Thermal conductivity</term><term>Ytterbium alloys</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>7215E</term><term>6540B</term><term>Etude expérimentale</term><term>Ytterbium alliage</term><term>Indium alliage</term><term>Cuivre alliage</term><term>Conductivité thermique</term><term>Conductivité électrique</term><term>Transformation phase</term><term>Système fermions lourds</term><term>Stoechiométrie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Samples of various compositions were obtained in the homogeneity range of the Yb-In-Cu system (YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub>), from stoichiometric (YbInCu<sub>4</sub>) to YbIn<sub>0.905</sub>Cu<sub>4.095</sub>. Their lattice constant (at 300 K and in the range 20-100 K), total thermal conductivity, and electrical resistivity (from 4 to 300 K) were measured. All the compositions studied exhibited an isostructural phase transition at T<sub>v</sub> ≃ 40-80 K driven by a change in the Yb ion valence state. It was shown that within the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> homogeneity range, the lattice thermal conductivity κ<sub>ph</sub> decreases with increasing x; at T > T<sub>v </sub>, κ<sub>ph</sub> grows with temperature and the Lorenz number (which enters the Wiedemann-Franz law for the electronic component of thermal conductivity) of the light heavy-fermion system, to which YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> belongs for T < T<sub>v</sub> , behaves as it does in classical heavy-fermion systems. Thermal cycling performed through T<sub>v</sub> generates stresses in the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> lattice, which entails an increase in the electrical resistivity and a decrease in the thermal conductivity. Soft anneal (prolonged room-temperature aging of samples) makes the effect disappear. A conclusion is drawn as to the nature of the effects observed. © 2002 MAIK Nauka / Interperiodica .</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1063-7834</s0></fA01><fA02 i1="01"><s0>PSOSED</s0></fA02><fA03 i2="1"><s0>Phys. solid state</s0></fA03><fA05><s2>44</s2></fA05><fA06><s2>7</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Unusual Behavior of the Lattice Thermal Conductivity and of the Lorenz Number in the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> System</s1></fA08><fA11 i1="01" i2="1"><s1>PARFENEVA (L. S.)</s1></fA11><fA11 i1="02" i2="1"><s1>SMIRNOV (I. A.)</s1></fA11><fA11 i1="03" i2="1"><s1>MISIOREK (H.)</s1></fA11><fA11 i1="04" i2="1"><s1>MUCHA (J.)</s1></fA11><fA11 i1="05" i2="1"><s1>JEZOWSKI (A.)</s1></fA11><fA11 i1="06" i2="1"><s1>RITTER (F.)</s1></fA11><fA11 i1="07" i2="1"><s1>ASSMUS (W.)</s1></fA11><fA14 i1="01"><s1>Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021 Russia</s1><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw 50-950, Poland</s1><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="03"><s1>Goethe University, Frankfurt-am-Main, 60-054 Germany</s1><sZ>6 aut.</sZ><sZ>7 aut.</sZ></fA14><fA20><s1>1212-1217</s1></fA20><fA21><s1>2002-07</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>1185</s2></fA43><fA44><s0>8100</s0><s1>© 2002 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>02-0384192</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physics of the solid state</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>Samples of various compositions were obtained in the homogeneity range of the Yb-In-Cu system (YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub>), from stoichiometric (YbInCu<sub>4</sub>) to YbIn<sub>0.905</sub>Cu<sub>4.095</sub>. Their lattice constant (at 300 K and in the range 20-100 K), total thermal conductivity, and electrical resistivity (from 4 to 300 K) were measured. All the compositions studied exhibited an isostructural phase transition at T<sub>v</sub> ≃ 40-80 K driven by a change in the Yb ion valence state. It was shown that within the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> homogeneity range, the lattice thermal conductivity κ<sub>ph</sub> decreases with increasing x; at T > T<sub>v </sub>, κ<sub>ph</sub> grows with temperature and the Lorenz number (which enters the Wiedemann-Franz law for the electronic component of thermal conductivity) of the light heavy-fermion system, to which YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> belongs for T < T<sub>v</sub> , behaves as it does in classical heavy-fermion systems. Thermal cycling performed through T<sub>v</sub> generates stresses in the YbIn<sub>1 - x</sub>Cu<sub>4 + x</sub> lattice, which entails an increase in the electrical resistivity and a decrease in the thermal conductivity. Soft anneal (prolonged room-temperature aging of samples) makes the effect disappear. A conclusion is drawn as to the nature of the effects observed. © 2002 MAIK Nauka / Interperiodica .</s0></fC01><fC02 i1="01" i2="3"><s0>001B70B15E</s0></fC02><fC02 i1="02" i2="3"><s0>001B60E40B</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>7215E</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="02" i2="3" l="FRE"><s0>6540B</s0><s2>PAC</s2><s4>INC</s4></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Etude expérimentale</s0></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Experimental study</s0></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Ytterbium alliage</s0></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Ytterbium alloys</s0></fC03><fC03 i1="05" i2="3" l="FRE"><s0>Indium alliage</s0></fC03><fC03 i1="05" i2="3" l="ENG"><s0>Indium alloys</s0></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Cuivre alliage</s0></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Copper alloys</s0></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Conductivité thermique</s0></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Thermal conductivity</s0></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Conductivité électrique</s0></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Electrical conductivity</s0></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Transformation phase</s0></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Phase transformations</s0></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Système fermions lourds</s0></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Heavy fermion systems</s0></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Stoechiométrie</s0></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Stoichiometry</s0></fC03><fN21><s1>210</s1></fN21><fN47 i1="01" i2="1"><s0>0228M001693</s0></fN47></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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