[Magnétisme et supraconductivité de la matière fermion lourd]
L'interférence entre magnétisme et supraconductivité non conventionnelle (de type singlet d ou triplet p) dans les systèmes électroniques fortement corrélés est discuté en prenant comme exemple les composés à fermions lourds. La formation des quasiparticules lourdes est le résultat de fluctuations locales et d une augmentation supplémentaire par les corrélations magnétiques. Nous discutons deux exemples (CeIn3 et CeCoIn5) de coexistence ou répulsion entre antiferromagnétisme et supraconductivité. Une surprise a été la découverte de la supraconductivité dans les composés ferromagnétiques itinérants UGe2 et URhGe. L'impact des résultats obtenus sur la matière fermion lourd dans les autres systèmes fortement corrèlés comme les composés organiques ou les oxydes supraconducteurs est souligné.
The interplay of magnetism and unconventional superconductivity (d singlet wave or p triplet wave) in a strongly correlated electronic system (SCES) is discussed with recent examples found in heavy fermion compounds. A short presentation is given on the formation of the heavy quasiparticle with the two sources of a local and intersite enhancement for the effective mass. Two cases of the coexistence or repulsion of antiferromagnetism and superconductivity are given with CeIn3 and CeCoIn5. A spectacular example is the emergence of superconductivity in relatively strong itinerant ferromagnets UGe2 and URhGe. The impact of heavy fermion matter among other SCES as organic conductor or high oxide is briefly pointed out.
Mot clés : Fermion lourd, Supraconductivité, Antiferromagnétisme, Ferromagnétisme
@article{CRPHYS_2006__7_1_22_0,
author = {Jacques Flouquet and Georg Knebel and Daniel Braithwaite and D. Aoki and Jean-Pascal Brison and Fr\'ed\'eric Hardy and Andrew Huxley and St\'ephane Raymond and Bernard Salce and Ilya Sheikin},
title = {Magnetism and superconductivity of heavy fermion matter},
journal = {Comptes Rendus. Physique},
pages = {22--34},
publisher = {Elsevier},
volume = {7},
number = {1},
year = {2006},
doi = {10.1016/j.crhy.2005.11.008},
language = {en},
}
TY - JOUR AU - Jacques Flouquet AU - Georg Knebel AU - Daniel Braithwaite AU - D. Aoki AU - Jean-Pascal Brison AU - Frédéric Hardy AU - Andrew Huxley AU - Stéphane Raymond AU - Bernard Salce AU - Ilya Sheikin TI - Magnetism and superconductivity of heavy fermion matter JO - Comptes Rendus. Physique PY - 2006 SP - 22 EP - 34 VL - 7 IS - 1 PB - Elsevier DO - 10.1016/j.crhy.2005.11.008 LA - en ID - CRPHYS_2006__7_1_22_0 ER -
%0 Journal Article %A Jacques Flouquet %A Georg Knebel %A Daniel Braithwaite %A D. Aoki %A Jean-Pascal Brison %A Frédéric Hardy %A Andrew Huxley %A Stéphane Raymond %A Bernard Salce %A Ilya Sheikin %T Magnetism and superconductivity of heavy fermion matter %J Comptes Rendus. Physique %D 2006 %P 22-34 %V 7 %N 1 %I Elsevier %R 10.1016/j.crhy.2005.11.008 %G en %F CRPHYS_2006__7_1_22_0
Jacques Flouquet; Georg Knebel; Daniel Braithwaite; D. Aoki; Jean-Pascal Brison; Frédéric Hardy; Andrew Huxley; Stéphane Raymond; Bernard Salce; Ilya Sheikin. Magnetism and superconductivity of heavy fermion matter. Comptes Rendus. Physique, Volume 7 (2006) no. 1, pp. 22-34. doi : 10.1016/j.crhy.2005.11.008. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.11.008/
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