ADROGUER, Pierre; CARPENTIER, David; CAYSSOL, Jérôme; ORIGNAC, Edmond

doi:10.1088/1367-2630/14/10/103027

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http://creativecommons.org/licenses/by-nc-nd/

ADROGUER, Pierre
Laboratoire de Physique de l'ENS Lyon [Phys-ENS]

CARPENTIER, David
Laboratoire de Physique de l'ENS Lyon [Phys-ENS]

CAYSSOL, Jérôme
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS]
Department of Physics [Berkeley]

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Este ítem está publicado en

New Journal of Physics. 2012-10-17, vol. 14, n° 10, p. 103027 (1-26)

Institute of Physics: Open Access Journals

Resumen en inglés

We consider the transport properties of topological insulators surface states in the presence of uncorrelated point-like disorder, both in the classical and quantum regimes. The transport properties of those two-dimensional surface states depend strongly on the amplitude of the hexagonal warping of their Fermi surface. It is shown that a perturbative analysis of the warping fails to describe the transport in experimentally available topological insulators, such as Bi2Se3 and Bi2Te3. Hence we develop a fully non-perturbative description of these effects. In particular, we find that the dependence of the warping amplitude on the Fermi energy manifests itself in a strong dependence of the diffusion constant on this Fermi energy, leading to several important experimental consequences. Moreover, the combination of a strong warping with an in plane Zeeman effect leads to an attenuation of conductance fluctuations in contrast to the situation of unwarped Dirac surface states.< Leer menos

DOI

http://dx.doi.org/10.1088/1367-2630/14/10/103027

Proyecto europeo

TOPOLOGICAL EFFECTS IN MATTER WITH STRONG SPIN-ORBIT COUPLING

Proyecto ANR

Transport électronique dans les isolants topologiques

Orígen

Importado de Hal

Centros de investigación

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798