Intertwined symmetry of the magnetic modulation and the flux-line lattice in the superconducting state of TmNí2B2C
Identifieur interne : 002849 ( Main/Exploration ); précédent : 002848; suivant : 002850Intertwined symmetry of the magnetic modulation and the flux-line lattice in the superconducting state of TmNí2B2C
Auteurs : M. R. Eskildsen [Danemark] ; K. Harada [Japon] ; P. L. Gammel [États-Unis] ; A. B. Abrahamsen [Danemark] ; N. H. Andersen [Danemark] ; G. Ernst [États-Unis] ; A. P. Ramirez [États-Unis] ; D. J. Bishop [États-Unis] ; K. Mortensen [Danemark] ; D. G. Naugle [États-Unis] ; K. D. D. Rathnayaka [États-Unis] ; P. C. Canfield [États-Unis]Source :
- Nature : (London) [ 0028-0836 ] ; 1998.
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Abstract
Materials that can in principle exhibit both superconductivity and ferromagnetism are caught in a dilemma: both states represent long-range order, but are in general mutually exclusive. When the material favours a ground state with a large magnetic moment, as is the case for Er4Rh4B (ref. 1), superconductivity is destroyed. For superconductivity to persist, the magnetic structure would need to adopt an antiferromagnetic modulation of short enough wavelength to ensure a small net moment on the length scale of the superconducting coherence length. The intermetallic borocarbide superconductors2-4 RNi2B2C (where R is a rare-earth element) have shed new light on this balance between magnetism and superconductivity. The response of these materials in the superconducting state to a magnetic field is dominated by the formation of a flux-line lattice-a regular array of quantized magnetic vortices whose symmetry and degree of order are easily modified and thus can be expected to interact with an underlying magnetic modulation. In TmNi2B2C, superconductivity and antiferromagnetic modulated ordering coexist below 1.5 K (refs 5-7). Here we present the results of a small-angle neutron-scattering study of this compound which show that the structure of the magnetic modulation and the symmetry of the flux-line lattice are intimately coupled, resulting in a complex phase diagram.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Intertwined symmetry of the magnetic modulation and the flux-line lattice in the superconducting state of TmNí<sub>2</sub>B<sub>2</sub>C</title><author><name sortKey="Eskildsen, M R" sort="Eskildsen, M R" uniqKey="Eskildsen M" first="M. R." last="Eskildsen">M. R. Eskildsen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Harada, K" sort="Harada, K" uniqKey="Harada K" first="K." last="Harada">K. 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Abrahamsen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Andersen, N H" sort="Andersen, N H" uniqKey="Andersen N" first="N. H." last="Andersen">N. H. Andersen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Ernst, G" sort="Ernst, G" uniqKey="Ernst G" first="G." last="Ernst">G. Ernst</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Ramirez, A P" sort="Ramirez, A P" uniqKey="Ramirez A" first="A. P." last="Ramirez">A. P. Ramirez</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Bishop, D J" sort="Bishop, D J" uniqKey="Bishop D" first="D. J." last="Bishop">D. J. Bishop</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Mortensen, K" sort="Mortensen, K" uniqKey="Mortensen K" first="K." last="Mortensen">K. Mortensen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Naugle, D G" sort="Naugle, D G" uniqKey="Naugle D" first="D. G." last="Naugle">D. G. Naugle</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Physics Department, Texas A&M University</s1><s2>College Station, Texas 77843</s2><s3>USA</s3><sZ>10 aut.</sZ><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>College Station, Texas 77843</wicri:noRegion></affiliation></author><author><name sortKey="Rathnayaka, K D D" sort="Rathnayaka, K D D" uniqKey="Rathnayaka K" first="K. D. D." last="Rathnayaka">K. D. D. Rathnayaka</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Physics Department, Texas A&M University</s1><s2>College Station, Texas 77843</s2><s3>USA</s3><sZ>10 aut.</sZ><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>College Station, Texas 77843</wicri:noRegion></affiliation></author><author><name sortKey="Canfield, P C" sort="Canfield, P C" uniqKey="Canfield P" first="P. C." last="Canfield">P. C. Canfield</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Ames Laboratory and Department of Physics and Astronomy, Iowa State University</s1><s2>Ames, Iowa 50011</s2><s3>USA</s3><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Ames (Iowa)</settlement><region type="state">Iowa</region></placeName><orgName type="university">Université d'État de l'Iowa</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">98-0287513</idno><date when="1998">1998</date><idno type="stanalyst">PASCAL 98-0287513 INIST</idno><idno type="RBID">Pascal:98-0287513</idno><idno type="wicri:Area/Pascal/Corpus">001180</idno><idno type="wicri:Area/Pascal/Curation">001180</idno><idno type="wicri:Area/Pascal/Checkpoint">001198</idno><idno type="wicri:explorRef" wicri:stream="Pascal" wicri:step="Checkpoint">001198</idno><idno type="wicri:doubleKey">0028-0836:1998:Eskildsen M:intertwined:symmetry:of</idno><idno type="wicri:Area/Main/Merge">002A31</idno><idno type="wicri:Area/Main/Curation">002849</idno><idno type="wicri:Area/Main/Exploration">002849</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Intertwined symmetry of the magnetic modulation and the flux-line lattice in the superconducting state of TmNí<sub>2</sub>B<sub>2</sub>C</title><author><name sortKey="Eskildsen, M R" sort="Eskildsen, M R" uniqKey="Eskildsen M" first="M. R." last="Eskildsen">M. R. Eskildsen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Harada, K" sort="Harada, K" uniqKey="Harada K" first="K." last="Harada">K. Harada</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Advanced Research Laboratory, Hitatchi Ltd</s1><s2>Hatoyama, Saitama 350-03</s2><s3>JPN</s3><sZ>2 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>Hatoyama, Saitama 350-03</wicri:noRegion></affiliation></author><author><name sortKey="Gammel, P L" sort="Gammel, P L" uniqKey="Gammel P" first="P. L." last="Gammel">P. L. Gammel</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Abrahamsen, A B" sort="Abrahamsen, A B" uniqKey="Abrahamsen A" first="A. B." last="Abrahamsen">A. B. Abrahamsen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Andersen, N H" sort="Andersen, N H" uniqKey="Andersen N" first="N. H." last="Andersen">N. H. Andersen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Ernst, G" sort="Ernst, G" uniqKey="Ernst G" first="G." last="Ernst">G. Ernst</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Ramirez, A P" sort="Ramirez, A P" uniqKey="Ramirez A" first="A. P." last="Ramirez">A. P. Ramirez</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Bishop, D J" sort="Bishop, D J" uniqKey="Bishop D" first="D. J." last="Bishop">D. J. Bishop</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Bell Laboratories, Lucent Technologies, 700 Mountain Avenue</s1><s2>Murray Hill, New Jersey 07974</s2><s3>USA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Murray Hill, New Jersey 07974</wicri:noRegion></affiliation></author><author><name sortKey="Mortensen, K" sort="Mortensen, K" uniqKey="Mortensen K" first="K." last="Mortensen">K. Mortensen</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Risø National Laboratory, PO Box 49</s1><s2>4000 Roskilde</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ><sZ>9 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>4000 Roskilde</wicri:noRegion></affiliation></author><author><name sortKey="Naugle, D G" sort="Naugle, D G" uniqKey="Naugle D" first="D. G." last="Naugle">D. G. Naugle</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Physics Department, Texas A&M University</s1><s2>College Station, Texas 77843</s2><s3>USA</s3><sZ>10 aut.</sZ><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>College Station, Texas 77843</wicri:noRegion></affiliation></author><author><name sortKey="Rathnayaka, K D D" sort="Rathnayaka, K D D" uniqKey="Rathnayaka K" first="K. D. D." last="Rathnayaka">K. D. D. Rathnayaka</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Physics Department, Texas A&M University</s1><s2>College Station, Texas 77843</s2><s3>USA</s3><sZ>10 aut.</sZ><sZ>11 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>College Station, Texas 77843</wicri:noRegion></affiliation></author><author><name sortKey="Canfield, P C" sort="Canfield, P C" uniqKey="Canfield P" first="P. C." last="Canfield">P. C. Canfield</name><affiliation wicri:level="4"><inist:fA14 i1="05"><s1>Ames Laboratory and Department of Physics and Astronomy, Iowa State University</s1><s2>Ames, Iowa 50011</s2><s3>USA</s3><sZ>12 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><settlement type="city">Ames (Iowa)</settlement><region type="state">Iowa</region></placeName><orgName type="university">Université d'État de l'Iowa</orgName></affiliation></author></analytic><series><title level="j" type="main">Nature : (London)</title><title level="j" type="abbreviated">Nature : (Lond.)</title><idno type="ISSN">0028-0836</idno><imprint><date when="1998">1998</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Nature : (London)</title><title level="j" type="abbreviated">Nature : (Lond.)</title><idno type="ISSN">0028-0836</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Borides carbides</term><term>Experimental study</term><term>Flux-line lattices</term><term>Magnetic flux</term><term>Magnetism</term><term>Nickel compounds</term><term>Quaternary compounds</term><term>Superconductors</term><term>Thulium compounds</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Supraconducteur</term><term>Réseau ligne flux</term><term>Flux magnétique</term><term>Magnétisme</term><term>Thulium composé</term><term>Nickel composé</term><term>Borocarbure</term><term>Composé quaternaire</term><term>7472N</term><term>TmNi2B2C</term><term>B C Ni Tm</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Materials that can in principle exhibit both superconductivity and ferromagnetism are caught in a dilemma: both states represent long-range order, but are in general mutually exclusive. When the material favours a ground state with a large magnetic moment, as is the case for Er<sub>4</sub>Rh<sub>4</sub>B (ref. 1), superconductivity is destroyed. For superconductivity to persist, the magnetic structure would need to adopt an antiferromagnetic modulation of short enough wavelength to ensure a small net moment on the length scale of the superconducting coherence length. The intermetallic borocarbide superconductors<sup>2-4</sup> RNi<sub>2</sub>B<sub>2</sub>C (where R is a rare-earth element) have shed new light on this balance between magnetism and superconductivity. The response of these materials in the superconducting state to a magnetic field is dominated by the formation of a flux-line lattice-a regular array of quantized magnetic vortices whose symmetry and degree of order are easily modified and thus can be expected to interact with an underlying magnetic modulation. In TmNi<sub>2</sub>B<sub>2</sub>C, superconductivity and antiferromagnetic modulated ordering coexist below 1.5 K (refs 5-7). Here we present the results of a small-angle neutron-scattering study of this compound which show that the structure of the magnetic modulation and the symmetry of the flux-line lattice are intimately coupled, resulting in a complex phase diagram.</div></front></TEI><affiliations><list><country><li>Danemark</li><li>Japon</li><li>États-Unis</li></country><region><li>Iowa</li></region><settlement><li>Ames (Iowa)</li></settlement><orgName><li>Université d'État de l'Iowa</li></orgName></list><tree><country name="Danemark"><noRegion><name sortKey="Eskildsen, M R" sort="Eskildsen, M R" uniqKey="Eskildsen M" first="M. R." last="Eskildsen">M. R. Eskildsen</name></noRegion><name sortKey="Abrahamsen, A B" sort="Abrahamsen, A B" uniqKey="Abrahamsen A" first="A. B." last="Abrahamsen">A. B. Abrahamsen</name><name sortKey="Andersen, N H" sort="Andersen, N H" uniqKey="Andersen N" first="N. H." last="Andersen">N. H. Andersen</name><name sortKey="Mortensen, K" sort="Mortensen, K" uniqKey="Mortensen K" first="K." last="Mortensen">K. Mortensen</name></country><country name="Japon"><noRegion><name sortKey="Harada, K" sort="Harada, K" uniqKey="Harada K" first="K." last="Harada">K. Harada</name></noRegion></country><country name="États-Unis"><noRegion><name sortKey="Gammel, P L" sort="Gammel, P L" uniqKey="Gammel P" first="P. L." last="Gammel">P. L. Gammel</name></noRegion><name sortKey="Bishop, D J" sort="Bishop, D J" uniqKey="Bishop D" first="D. J." last="Bishop">D. J. Bishop</name><name sortKey="Canfield, P C" sort="Canfield, P C" uniqKey="Canfield P" first="P. C." last="Canfield">P. C. Canfield</name><name sortKey="Ernst, G" sort="Ernst, G" uniqKey="Ernst G" first="G." last="Ernst">G. Ernst</name><name sortKey="Naugle, D G" sort="Naugle, D G" uniqKey="Naugle D" first="D. G." last="Naugle">D. G. Naugle</name><name sortKey="Ramirez, A P" sort="Ramirez, A P" uniqKey="Ramirez A" first="A. P." last="Ramirez">A. P. Ramirez</name><name sortKey="Rathnayaka, K D D" sort="Rathnayaka, K D D" uniqKey="Rathnayaka K" first="K. D. D." last="Rathnayaka">K. D. D. Rathnayaka</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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