Majorana Fermions in Honeycomb Lattices - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue The European Physical Journal B: Condensed Matter and Complex Systems Année : 2014

Majorana Fermions in Honeycomb Lattices

Résumé

We study the formation of Majorana fermions in honeycomb-lattice structures in the presence of a Zeeman field, Rashba spin-orbit coupling, and in the proximity of an s-wave superconductor. We show that an exact mapping exists between an anisotropic hexagonal-lattice nanoribbon at k = 0 and a one-dimensional chain, for which the existence of Majorana fermions has been extensively discussed. Consequently we can predict the conditions for the emergence of Majorana fermions at the edges of such ribbon, and relate the existence of Majoranas to a band inversion in the bulk band structure. Moreover we ?nd that similar situations arise in isotropic lattices and we give some examples which show the formation of Majorana fermions in these structures
Fichier principal
Vignette du fichier
1309.1143v4.pdf (1.97 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

cea-01334691 , version 1 (21-06-2016)

Identifiants

Citer

C. Dutreix, M. Guigou, D. Chevallier, C. Bena. Majorana Fermions in Honeycomb Lattices. The European Physical Journal B: Condensed Matter and Complex Systems, 2014, 87, pp.296. ⟨10.1140/epjb/e2014-50243-9⟩. ⟨cea-01334691⟩
37 Consultations
229 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More