Theory of interplay of nuclear magnetism and superconductivity in AuIn2
Identifieur interne : 001A64 ( France/Analysis ); précédent : 001A63; suivant : 001A65Theory of interplay of nuclear magnetism and superconductivity in AuIn2
Auteurs : RBID : Pascal:97-0585252Descripteurs français
- Pascal (Inist)
- 7460G, Etude théorique, Etude expérimentale, Or alliage, Indium alliage, Supraconductivité, Propriété magnétique, Magnétisme nucléaire, Champ critique, Température critique, Anisotropie, Moment magnétique nucléaire, Température transition, Anisotropie magnétique, Supraconducteur magnétique, Température transition supraconductrice, Champ critique supraconducteur, Température transition magnétique, Interaction hyperfine.
English descriptors
- KwdEn :
- Anisotropy, Critical field, Critical temperature, Experimental study, Gold alloys, Hyperfine interactions, Indium alloys, Magnetic anisotropy, Magnetic properties, Magnetic superconductors, Magnetic transition temperature, Nuclear magnetic moments, Nuclear magnetism, Superconducting critical field, Superconducting transition temperature, Superconductivity, Theoretical study, Transition temperature.
Abstract
The recently reported [S. Rehmann, T. Herrmannsdorfer, and F. Pobel, Phys. Rev. Lett. 78, 1122 (1997)] coexistence of a nuclear magnetic order, with the critical temperature TM=35 μK, and superconductivity, with the critical temperature TS=207 mK, in AuIn2 is studied theoretically. It is shown that superconducting (S) electrons and localized nuclear magnetic moments interact predominantly via the contact hyperfine interaction, giving rise to a spiral or domainlike magnetic order in the superconducting phase depending on the strength of magnetic anisotropy. In clean samples (l>ξ0) of AuIn2 the oscillatory magnetic order should produce a line of nodes in the quasiparticle spectrum of S electrons. The critical field Hc(T=0) in the coexistence phase is reduced by a factor of 2 with respect to its bare value.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Theory of interplay of nuclear magnetism and superconductivity in AuIn<sub>2</sub></title><author><name sortKey="Kulic, M L" uniqKey="Kulic M">M. L. Kulic</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Max-Planck-Institut fur Festkorperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany</s1><sZ>1 aut.</sZ></inist:fA14><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max-Planck-Institut fur Festkorperforschung, Heisenbergstrasse 1, D-70569 Stuttgart</wicri:regionArea><wicri:noRegion>70569 Stuttgart</wicri:noRegion><wicri:noRegion>D-70569 Stuttgart</wicri:noRegion></affiliation><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex, France</s1><sZ>1 aut.</sZ></inist:fA14><country xml:lang="fr">France</country><wicri:regionArea>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex</wicri:regionArea><wicri:noRegion>CNRS-URA 1537 Gradignan Cedex</wicri:noRegion><wicri:noRegion>CNRS-URA 1537 Gradignan Cedex</wicri:noRegion><orgName type="university">Université Bordeaux I</orgName><placeName><settlement type="city">Bordeaux</settlement><region type="region" nuts="2">Aquitaine</region></placeName></affiliation></author><author><name sortKey="Buzdin, A I" uniqKey="Buzdin A">A. I. Buzdin</name><affiliation wicri:level="4"><inist:fA14 i1="03"><s1>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex, France</s1><sZ>2 aut.</sZ></inist:fA14><country xml:lang="fr">France</country><wicri:regionArea>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex</wicri:regionArea><wicri:noRegion>CNRS-URA 1537 Gradignan Cedex</wicri:noRegion><wicri:noRegion>CNRS-URA 1537 Gradignan Cedex</wicri:noRegion><orgName type="university">Université Bordeaux I</orgName><placeName><settlement type="city">Bordeaux</settlement><region type="region" nuts="2">Aquitaine</region></placeName></affiliation></author><author><name sortKey="Bulaevskii, L N" uniqKey="Bulaevskii L">L. N. Bulaevskii</name><affiliation wicri:level="2"><inist:fA14 i1="04"><s1>Los Alamos National Laboratory, Los Alamos, New Mexico 87545</s1><sZ>3 aut.</sZ></inist:fA14><country xml:lang="fr">États-Unis</country><placeName><region type="state">Nouveau-Mexique</region></placeName><wicri:cityArea>Los Alamos National Laboratory, Los Alamos</wicri:cityArea></affiliation></author></titleStmt><publicationStmt><idno type="inist">97-0585252</idno><date when="1997-11-01">1997-11-01</date><idno type="stanalyst">PASCAL 97-0585252 AIP</idno><idno type="RBID">Pascal:97-0585252</idno><idno type="wicri:Area/Main/Corpus">017F27</idno><idno type="wicri:Area/Main/Repository">017880</idno><idno type="wicri:Area/France/Extraction">001A64</idno></publicationStmt><seriesStmt><idno type="ISSN">0163-1829</idno><title level="j" type="abbreviated">Phys. rev., B, Condens. matter</title><title level="j" type="main">Physical review. B, Condensed matter</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anisotropy</term><term>Critical field</term><term>Critical temperature</term><term>Experimental study</term><term>Gold alloys</term><term>Hyperfine interactions</term><term>Indium alloys</term><term>Magnetic anisotropy</term><term>Magnetic properties</term><term>Magnetic superconductors</term><term>Magnetic transition temperature</term><term>Nuclear magnetic moments</term><term>Nuclear magnetism</term><term>Superconducting critical field</term><term>Superconducting transition temperature</term><term>Superconductivity</term><term>Theoretical study</term><term>Transition temperature</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>7460G</term><term>Etude théorique</term><term>Etude expérimentale</term><term>Or alliage</term><term>Indium alliage</term><term>Supraconductivité</term><term>Propriété magnétique</term><term>Magnétisme nucléaire</term><term>Champ critique</term><term>Température critique</term><term>Anisotropie</term><term>Moment magnétique nucléaire</term><term>Température transition</term><term>Anisotropie magnétique</term><term>Supraconducteur magnétique</term><term>Température transition supraconductrice</term><term>Champ critique supraconducteur</term><term>Température transition magnétique</term><term>Interaction hyperfine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The recently reported [S. Rehmann, T. Herrmannsdorfer, and F. Pobel, Phys. Rev. Lett. 78, 1122 (1997)] coexistence of a nuclear magnetic order, with the critical temperature T<sub>M</sub>=35 μK, and superconductivity, with the critical temperature T<sub>S</sub>=207 mK, in AuIn<sub>2</sub> is studied theoretically. It is shown that superconducting (S) electrons and localized nuclear magnetic moments interact predominantly via the contact hyperfine interaction, giving rise to a spiral or domainlike magnetic order in the superconducting phase depending on the strength of magnetic anisotropy. In clean samples (l>ξ<sub>0</sub>) of AuIn<sub>2</sub> the oscillatory magnetic order should produce a line of nodes in the quasiparticle spectrum of S electrons. The critical field H<sub>c</sub>(T=0) in the coexistence phase is reduced by a factor of 2 with respect to its bare value.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0163-1829</s0></fA01><fA02 i1="01"><s0>PRBMDO</s0></fA02><fA03 i2="1"><s0>Phys. rev., B, Condens. matter</s0></fA03><fA05><s2>56</s2></fA05><fA06><s2>18</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Theory of interplay of nuclear magnetism and superconductivity in AuIn<sub>2</sub></s1></fA08><fA11 i1="01" i2="1"><s1>KULIC (M. L.)</s1></fA11><fA11 i1="02" i2="1"><s1>BUZDIN (A. I.)</s1></fA11><fA11 i1="03" i2="1"><s1>BULAEVSKII (L. N.)</s1></fA11><fA14 i1="01"><s1>Max-Planck-Institut fur Festkorperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany</s1><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex, France</s1><sZ>1 aut.</sZ></fA14><fA14 i1="03"><s1>Centre de Physique Theorique et de Modelisation, Universite Bordeaux I, CNRS-URA 1537 Gradignan Cedex, France</s1><sZ>2 aut.</sZ></fA14><fA14 i1="04"><s1>Los Alamos National Laboratory, Los Alamos, New Mexico 87545</s1><sZ>3 aut.</sZ></fA14><fA20><s2>R11415-R11418</s2></fA20><fA21><s1>1997-11-01</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>© 1997 American Institute of Physics. All rights reserved.</s1></fA44><fA47 i1="01" i2="1"><s0>97-0585252</s0></fA47><fA60><s1>P</s1><s3>CR</s3></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physical review. B, Condensed matter</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>The recently reported [S. Rehmann, T. Herrmannsdorfer, and F. Pobel, Phys. Rev. Lett. 78, 1122 (1997)] coexistence of a nuclear magnetic order, with the critical temperature T<sub>M</sub>=35 μK, and superconductivity, with the critical temperature T<sub>S</sub>=207 mK, in AuIn<sub>2</sub> is studied theoretically. It is shown that superconducting (S) electrons and localized nuclear magnetic moments interact predominantly via the contact hyperfine interaction, giving rise to a spiral or domainlike magnetic order in the superconducting phase depending on the strength of magnetic anisotropy. In clean samples (l>ξ<sub>0</sub>) of AuIn<sub>2</sub> the oscillatory magnetic order should produce a line of nodes in the quasiparticle spectrum of S electrons. 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