Insulator-superconductor transition in Tm0.4Pr0.6Ba2Cu3O7 by iso-valent substitution at Ba site
Identifieur interne : 001329 ( Pascal/Checkpoint ); précédent : 001328; suivant : 001330Insulator-superconductor transition in Tm0.4Pr0.6Ba2Cu3O7 by iso-valent substitution at Ba site
Auteurs : L. Colonescu [France] ; J. Berthon [France] ; R. Suryanarayanan [France]Source :
- Solid state communications [ 0038-1098 ] ; 1997.
Descripteurs français
- Pascal (Inist)
- Transition supraconductrice, Hybridation, Supraconductivité, Composition chimique, Transformation phase cristalline, Réseau orthorhombique, Réseau quadratique, Recuit, Atmosphère contrôlée, Orbitale, Diffraction RX, Transition métal isolant, Paramètre cristallin, Polycristal, Thulium oxyde, Praséodyme oxyde, Baryum oxyde, Strontium oxyde, Etude expérimentale, 7462B, 7425J, 7472Y, Cuivre oxyde, Composé n éléments, Tm0,4Pr0,6Ba2-kSrkcu3o6+z, Ba Cu O Pr Sr Tm.
English descriptors
- KwdEn :
- Annealing, Barium oxides, Chemical composition, Controlled atmospheres, Copper oxides, Crystal-phase transformations, Experimental study, Hybridization, Lattice parameters, Metal-insulator transition, Multi-element compounds, Orbital, Orthorhombic lattices, Polycrystals, Praseodymium oxides, Strontium oxides, Superconducting transition, Superconductivity, Tetragonal lattices, Thulium oxides, XRD.
Abstract
We report on the preparation, X-ray diffraction and a.c. susceptibility of Tm0.4Pr0.6Ba2.kSrkCu3O6+z. An orthorhombic to tetragonal transition was observed for k = 0.8. When the samples (for 0 ≤ k < 1) were heated in argon prior to oxygen annealing, orthorhombicity was found to increase. An insulator to superconductor transition was observed for k ≥ 0.6. The effect of Sr substitution and the heat treatment may lead to a reduction in Pr-f hybridization with oxygen orbitals and to an increase in oxygen ordering favouring the restoration of superconductivity in this compound.
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Colonescu</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>91405 Orsay</wicri:noRegion><wicri:noRegion>Université Paris-Sud</wicri:noRegion><placeName><settlement type="city">Orsay</settlement><region type="region" nuts="2">Île-de-France</region></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author><author><name sortKey="Berthon, J" sort="Berthon, J" uniqKey="Berthon J" first="J." last="Berthon">J. Berthon</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Orsay</settlement><settlement type="city">Orsay</settlement></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author><author><name sortKey="Suryanarayanan, R" sort="Suryanarayanan, R" uniqKey="Suryanarayanan R" first="R." last="Suryanarayanan">R. Suryanarayanan</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>91405 Orsay</wicri:noRegion><wicri:noRegion>Université Paris-Sud</wicri:noRegion><placeName><settlement type="city">Orsay</settlement><region type="region" nuts="2">Île-de-France</region></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">98-0023034</idno><date when="1997">1997</date><idno type="stanalyst">PASCAL 98-0023034 INIST</idno><idno type="RBID">Pascal:98-0023034</idno><idno type="wicri:Area/Pascal/Corpus">001254</idno><idno type="wicri:Area/Pascal/Curation">001254</idno><idno type="wicri:Area/Pascal/Checkpoint">001329</idno><idno type="wicri:explorRef" wicri:stream="Pascal" wicri:step="Checkpoint">001329</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Insulator-superconductor transition in Tm<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> by iso-valent substitution at Ba site</title><author><name sortKey="Colonescu, L" sort="Colonescu, L" uniqKey="Colonescu L" first="L." last="Colonescu">L. Colonescu</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Orsay</settlement><settlement type="city">Orsay</settlement></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author><author><name sortKey="Berthon, J" sort="Berthon, J" uniqKey="Berthon J" first="J." last="Berthon">J. Berthon</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>91405 Orsay</wicri:noRegion><wicri:noRegion>Université Paris-Sud</wicri:noRegion><placeName><settlement type="city">Orsay</settlement><region type="region" nuts="2">Île-de-France</region></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author><author><name sortKey="Suryanarayanan, R" sort="Suryanarayanan, R" uniqKey="Suryanarayanan R" first="R." last="Suryanarayanan">R. Suryanarayanan</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Île-de-France</region><settlement type="city">Orsay</settlement><settlement type="city">Orsay</settlement></placeName><orgName type="university">Université Paris-Sud</orgName></affiliation></author></analytic><series><title level="j" type="main">Solid state communications</title><title level="j" type="abbreviated">Solid state commun.</title><idno type="ISSN">0038-1098</idno><imprint><date when="1997">1997</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Solid state communications</title><title level="j" type="abbreviated">Solid state commun.</title><idno type="ISSN">0038-1098</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Annealing</term><term>Barium oxides</term><term>Chemical composition</term><term>Controlled atmospheres</term><term>Copper oxides</term><term>Crystal-phase transformations</term><term>Experimental study</term><term>Hybridization</term><term>Lattice parameters</term><term>Metal-insulator transition</term><term>Multi-element compounds</term><term>Orbital</term><term>Orthorhombic lattices</term><term>Polycrystals</term><term>Praseodymium oxides</term><term>Strontium oxides</term><term>Superconducting transition</term><term>Superconductivity</term><term>Tetragonal lattices</term><term>Thulium oxides</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Transition supraconductrice</term><term>Hybridation</term><term>Supraconductivité</term><term>Composition chimique</term><term>Transformation phase cristalline</term><term>Réseau orthorhombique</term><term>Réseau quadratique</term><term>Recuit</term><term>Atmosphère contrôlée</term><term>Orbitale</term><term>Diffraction RX</term><term>Transition métal isolant</term><term>Paramètre cristallin</term><term>Polycristal</term><term>Thulium oxyde</term><term>Praséodyme oxyde</term><term>Baryum oxyde</term><term>Strontium oxyde</term><term>Etude expérimentale</term><term>7462B</term><term>7425J</term><term>7472Y</term><term>Cuivre oxyde</term><term>Composé n éléments</term><term>Tm0,4Pr0,6Ba2-kSrkcu3o6+z</term><term>Ba Cu O Pr Sr Tm</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We report on the preparation, X-ray diffraction and a.c. susceptibility of Tm<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2.k</sub>Sr<sub>k</sub>Cu<sub>3</sub>O<sub>6+z</sub>. An orthorhombic to tetragonal transition was observed for k = 0.8. When the samples (for 0 ≤ k < 1) were heated in argon prior to oxygen annealing, orthorhombicity was found to increase. An insulator to superconductor transition was observed for k ≥ 0.6. The effect of Sr substitution and the heat treatment may lead to a reduction in Pr-f hybridization with oxygen orbitals and to an increase in oxygen ordering favouring the restoration of superconductivity in this compound.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0038-1098</s0></fA01><fA02 i1="01"><s0>SSCOA4</s0></fA02><fA03 i2="1"><s0>Solid state commun.</s0></fA03><fA05><s2>104</s2></fA05><fA06><s2>9</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Insulator-superconductor transition in Tm<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> by iso-valent substitution at Ba site</s1></fA08><fA11 i1="01" i2="1"><s1>COLONESCU (L.)</s1></fA11><fA11 i1="02" i2="1"><s1>BERTHON (J.)</s1></fA11><fA11 i1="03" i2="1"><s1>SURYANARAYANAN (R.)</s1></fA11><fA14 i1="01"><s1>Laboratoire de Chimie des Solides, CNRS, Bât. 414, Université Paris-Sud</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA20><s1>547-551</s1></fA20><fA21><s1>1997</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>10917</s2><s5>354000079597040100</s5></fA43><fA44><s0>0000</s0><s1>© 1998 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>22 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>98-0023034</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i2="1"><s0>Solid state communications</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>We report on the preparation, X-ray diffraction and a.c. susceptibility of Tm<sub>0.4</sub>Pr<sub>0.6</sub>Ba<sub>2.k</sub>Sr<sub>k</sub>Cu<sub>3</sub>O<sub>6+z</sub>. An orthorhombic to tetragonal transition was observed for k = 0.8. When the samples (for 0 ≤ k < 1) were heated in argon prior to oxygen annealing, orthorhombicity was found to increase. An insulator to superconductor transition was observed for k ≥ 0.6. The effect of Sr substitution and the heat treatment may lead to a reduction in Pr-f hybridization with oxygen orbitals and to an increase in oxygen ordering favouring the restoration of superconductivity in this compound.</s0></fC01><fC02 i1="01" i2="3"><s0>001B70D62B</s0></fC02><fC02 i1="02" i2="3"><s0>001B70D25J</s0></fC02><fC02 i1="03" i2="3"><s0>001B70D72Y</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Transition supraconductrice</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Superconducting transition</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="GER"><s0>Supraleitfaehigkeitssprung</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Transición superconductora</s0><s5>01</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Hybridation</s0><s5>02</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Hybridization</s0><s5>02</s5></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Supraconductivité</s0><s5>03</s5></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Superconductivity</s0><s5>03</s5></fC03><fC03 i1="04" 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éléments</s0><s5>85</s5></fC03><fC03 i1="24" i2="3" l="ENG"><s0>Multi-element compounds</s0><s5>85</s5></fC03><fC03 i1="25" i2="3" l="FRE"><s0>Tm0,4Pr0,6Ba2-kSrkcu3o6+z</s0><s4>INC</s4><s5>92</s5></fC03><fC03 i1="26" i2="3" l="FRE"><s0>Ba Cu O Pr Sr Tm</s0><s4>INC</s4><s5>93</s5></fC03><fC07 i1="01" i2="3" l="FRE"><s0>Composé minéral</s0><s5>82</s5></fC07><fC07 i1="01" i2="3" l="ENG"><s0>Inorganic compounds</s0><s5>82</s5></fC07><fC07 i1="02" i2="3" l="FRE"><s0>Métal transition composé</s0><s5>83</s5></fC07><fC07 i1="02" i2="3" l="ENG"><s0>Transition element compounds</s0><s5>83</s5></fC07><fC07 i1="03" i2="3" l="FRE"><s0>Lanthanide composé</s0><s5>84</s5></fC07><fC07 i1="03" i2="3" l="ENG"><s0>Rare earth compounds</s0><s5>84</s5></fC07><fN21><s1>005</s1></fN21></pA></standard></inist><affiliations><list><country><li>France</li></country><region><li>Île-de-France</li></region><settlement><li>Orsay</li></settlement><orgName><li>Université Paris-Sud</li></orgName></list><tree><country name="France"><region name="Île-de-France"><name sortKey="Colonescu, L" sort="Colonescu, L" uniqKey="Colonescu L" first="L." last="Colonescu">L. Colonescu</name></region><name sortKey="Berthon, J" sort="Berthon, J" uniqKey="Berthon J" first="J." last="Berthon">J. Berthon</name><name sortKey="Suryanarayanan, R" sort="Suryanarayanan, R" uniqKey="Suryanarayanan R" first="R." last="Suryanarayanan">R. Suryanarayanan</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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