Quasi-ballistic transport of Dirac fermions in a Bi2Se3 nanowire
CAYSSOL, Jérôme
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
BÜCHNER, B.
Leibniz Institute for Solid State and Materials Research [IFW Dresden]
Department of Physics [TU Dresden]
Leibniz Institute for Solid State and Materials Research [IFW Dresden]
Department of Physics [TU Dresden]
GIRAUD, R.
Leibniz Institute for Solid State and Materials Research [IFW Dresden]
Laboratoire de photonique et de nanostructures [LPN]
< Leer menos
Leibniz Institute for Solid State and Materials Research [IFW Dresden]
Laboratoire de photonique et de nanostructures [LPN]
Idioma
en
Article de revue
Este ítem está publicado en
Physical Review Letters. 2013-05-03, vol. 110, n° 18, p. 186806 (1-5)
American Physical Society
Resumen en inglés
Quantum coherent transport of Dirac fermions in a mesoscopic nanowire of the 3D topological insulator Bi2Se3 is studied in the weak-disorder limit. At very low temperatures, many harmonics are evidenced in the Fourier ...Leer más >
Quantum coherent transport of Dirac fermions in a mesoscopic nanowire of the 3D topological insulator Bi2Se3 is studied in the weak-disorder limit. At very low temperatures, many harmonics are evidenced in the Fourier transform of Aharonov-Bohm oscillations, revealing the long phase-coherence length of surface states. Remarkably, from their exponential temperature dependence, we infer an unusual 1/T power law for the phase coherence length. This decoherence is typical for quasi-ballistic fermions weakly coupled to the dynamics of their environment.< Leer menos
Palabras clave en inglés
Quantum wires
Phases: geometric
dynamic or topological
Electronic transport in mesoscopic systems
Proyecto europeo
TOPOLOGICAL EFFECTS IN MATTER WITH STRONG SPIN-ORBIT COUPLING
Proyecto ANR
Transport électronique dans les isolants topologiques
Orígen
Importado de HalCentros de investigación