Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines cond-mat
Date Lundi 10 Décembre 2018
Heure 14:00
Institut IPHT
Salle Salle Claude Itzykson, Bât. 774
Nom de l'orateur Thierry Jolicoeur
Prenom de l'orateur
Addresse email de l'orateur
Institution de l'orateur LPTMS
Titre Quantum Hall Ferromagnetism and Coherence Phenomena in Monolayer and Bilayer Graphene
Résumé Monolayer graphene in the quantum Hall has a set of quasi fourfold degenerate Landau levels at zero energy. They give rise to integer quantum Hall states with various symmetry-breaking patterns. Bernal-stacked bilayer graphene has an extra twofold degeneracy due to orbital degrees of freedom. This may lead to new phases with orbital coherence. I will present various attempts at mapping the phase diagram of these systems as a function of the electric bias between layers and applied field.
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