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HL: Fachverband Halbleiterphysik

HL 3: Transport: Topological Insulators (jointly with DS, MA, HL, O)

HL 3.13: Vortrag

Montag, 20. März 2017, 12:45–13:00, HSZ 204

Effect of disordered geometry on transport properties of three dimensional topological insulator nanowires — •Emmanouil Xypakis¹, Jun Won Rhim¹, Roni Ilan², and Jens H. Bardarson¹ — ¹Max Planck Institute for the Physics of Complex Systems, Dresden — ²Department of Physics, University of California, Berkeley, California

Three dimensional topological insulator nanowires are materials which, while insulating in the bulk, have a metallic boundary described by a two dimensional Dirac Hamiltonian with antiperiodic boundary conditions. Transport properties of this system have been extensively studied in the limit where the surface manifold is conformally at (e.g., a cylinder) in the presence of a random disordered scalar potential. In this talk I will discuss how this picture is altered when a more realistic surface manifold is chosen, such as a cylinder with a randomly fluctuating radius.