Statut | Confirmé |
Série | LPENS-MDQ |
Domaines | cond-mat |
Date | Lundi 1 Juin 2015 |
Heure | 13:30 |
Institut | LPA |
Salle | room 236, 29 rue dUlm |
Nom de l'orateur | Gueron |
Prenom de l'orateur | Sophie |
Addresse email de l'orateur | |
Institution de l'orateur | LPS, Univ. Paris-Sud, CNRS |
Titre | Field-resistant quantum interference in bismuth nanowire-based Josephson junctions |
Résumé | I will present our work on the superconducting proximity effect induced in crystalline bismuth nanowires, a system with extremely high Rashba spin-orbit coupling. By connecting these nanowires to superconducting electrodes with very high critical field, we have explored the proximity effect over a broad magnetic field range, up to a regime in which the Zeeman energy reaches the spin-orbit and Fermi energies of the Bismuth wires. I will go into some detail about the complex interference pattern displayed by the critical current as a function of magnetic field. I will argue that it is due to both spin and orbital degrees of freedom, and is the tell-tale sign of low dimensionality, phase coherent conduction regions interfering within the nanowires. Ref: Phys. Rev. B 90, 245427 (2014) |
Numéro de preprint arXiv | |
Commentaires | |
Fichiers attachés |
Pour obtenir l' affiche de ce séminaire : [ Postscript | PDF ]
|
[ English version ] |