Probing the helical edge states of a topological insulator by Cooper-pair injection
Langue
en
Article de revue
Ce document a été publié dans
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2010, vol. 82, n° 8, p. 081303(R)
American Physical Society
Résumé en anglais
We consider the proximity effect between a singlet s-wave superconductor and the edge of a quantum spin Hall (QSH) topological insulator. We establish that Andreev reflection at a QSH edge state/superconductor interface ...Lire la suite >
We consider the proximity effect between a singlet s-wave superconductor and the edge of a quantum spin Hall (QSH) topological insulator. We establish that Andreev reflection at a QSH edge state/superconductor interface is perfect while nonlocal Andreev processes through the superconductor are totally suppressed. We compute the corresponding conductance and noise.< Réduire
Mots clés en anglais
topological insulators
supraconductivity
quantum Hall effect
quantum transport
Project ANR
Electronic EPR Source - ANR-07-NANO-0011
Origine
Importé de halUnités de recherche