We review the ferromagnetic superconductivity observed in the uranium based compounds, namely UGe2, URhGe and UCoGe, where the spin-triplet state is most likely realized. An unusual upper critical field , which is enhanced under a magnetic field in a certain field direction, is discussed in terms of spin fluctuations and of Fermi surface instabilities.
Dans cet article, on présente une revue des supraconducteurs ferromagnétiques à base d'uranium, tels UGe2, URhGe et UCoGe, dans lesquels l'état fondamental est un triplet de spin. Le champ critique supérieur a un comportement non usuel dans ces composés et croît en présence d'un champ magnétique appliqué le long de certaines directions. Ce phénomène est discuté en termes de fluctuations de spin et d'instabilités de la surface de Fermi.
Mots-clés : Fermions lourds, Supraconductivité non conventionnelle, Ferromagnetism, UGe2, UCoGe, URhGe
Dai Aoki 1, 2; Adrien Gourgout 2; Alexandre Pourret 2; Gaël Bastien 2; Georg Knebel 2; Jacques Flouquet 2
@article{CRPHYS_2014__15_7_630_0, author = {Dai Aoki and Adrien Gourgout and Alexandre Pourret and Ga\"el Bastien and Georg Knebel and Jacques Flouquet}, title = {Spin fluctuation and {Fermi} surface instability in ferromagnetic superconductors}, journal = {Comptes Rendus. Physique}, pages = {630--639}, publisher = {Elsevier}, volume = {15}, number = {7}, year = {2014}, doi = {10.1016/j.crhy.2014.07.004}, language = {en}, }
TY - JOUR AU - Dai Aoki AU - Adrien Gourgout AU - Alexandre Pourret AU - Gaël Bastien AU - Georg Knebel AU - Jacques Flouquet TI - Spin fluctuation and Fermi surface instability in ferromagnetic superconductors JO - Comptes Rendus. Physique PY - 2014 SP - 630 EP - 639 VL - 15 IS - 7 PB - Elsevier DO - 10.1016/j.crhy.2014.07.004 LA - en ID - CRPHYS_2014__15_7_630_0 ER -
%0 Journal Article %A Dai Aoki %A Adrien Gourgout %A Alexandre Pourret %A Gaël Bastien %A Georg Knebel %A Jacques Flouquet %T Spin fluctuation and Fermi surface instability in ferromagnetic superconductors %J Comptes Rendus. Physique %D 2014 %P 630-639 %V 15 %N 7 %I Elsevier %R 10.1016/j.crhy.2014.07.004 %G en %F CRPHYS_2014__15_7_630_0
Dai Aoki; Adrien Gourgout; Alexandre Pourret; Gaël Bastien; Georg Knebel; Jacques Flouquet. Spin fluctuation and Fermi surface instability in ferromagnetic superconductors. Comptes Rendus. Physique, Emergent phenomena in actinides, Volume 15 (2014) no. 7, pp. 630-639. doi : 10.1016/j.crhy.2014.07.004. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2014.07.004/
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