Statut | Confirmé |
Série | LPENS-MDQ |
Domaines | cond-mat |
Date | Lundi 23 Novembre 2015 |
Heure | 13:30 |
Institut | LPA |
Salle | room 236, 29 rue dUlm |
Nom de l'orateur | Aprili |
Prenom de l'orateur | Marco |
Addresse email de l'orateur | marco [dot] aprili [at] u-psud [dot] fr |
Institution de l'orateur | Laboratoire de Physique des Solides - Orsay |
Titre | Out-of-equilibrium spin transport in Mesoscopic Superconductors |
Résumé | The excitations in conventional superconductors, Bogoliubov quasiparticles, are spin-1/2 fermions but their charge is energy-dependent and, in fact, zero at the gap edge. Therefore, in superconductors (unlike normal metals) the spin and charge degrees of freedom may be separated. I shall review spin injection into conventional superconductors and focus on our recent experiments on mesoscopic superconductors. I will show how quasiparticle spin transport and out-of-equilibrium spin-dependent superconductivity can be triggered using the Zeeman splitting of the quasiparticle density of states in thin-film superconductors with small spin-mixing scattering. Finally, I will address the spin dynamics and the feedback of quasiparticle spin imbalances on the strength of the superconducting energy gap. |
Numéro de preprint arXiv | |
Commentaires | |
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