Non-Equilibrium Transport Through a Gate-Controlled Barrier on the Quantum Spin Hall Edge
CAYSSOL, Jérôme
Department of Physics [Berkeley]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
See more >
Department of Physics [Berkeley]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
CAYSSOL, Jérôme
Department of Physics [Berkeley]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
< Reduce
Department of Physics [Berkeley]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
Language
en
Article de revue
This item was published in
Physical Review Letters. 2012, vol. 109, n° 21, p. 216602
American Physical Society
English Abstract
The Quantum Spin Hall insulator is characterized by the presence of gapless helical edge states where the spin of the charge carriers is locked to their direction of motion. In order to probe the properties of the edge ...Read more >
The Quantum Spin Hall insulator is characterized by the presence of gapless helical edge states where the spin of the charge carriers is locked to their direction of motion. In order to probe the properties of the edge modes, we propose a design of a tunable quantum impurity realized by a local gate under an external magnetic field. Using the integrability of the impurity model, the conductance is computed for arbitrary interactions, temperatures and voltages, including the effect of Fermi liquid leads. The result can be used to infer the strength of interactions from transport experimentsRead less <
English Keywords
Spin polarized transport
Integrable systems
Fermions in reduced dimensions
Electronic transport in nanoscale materials and structures
Origin
Hal imported