NBIA/QDev Seminar: Jens H. Bardarson

Quantum transport in Dirac materials

Dirac materials, such as graphene and topological insulators, have a linear low energy electronic spectrum described by Dirac fermions. In this talk, I give an overview of some of the main quantum transport properties of such particles in the presence of disorder and time reversal symmetry. I focus on the efforts to use quantum interference phenomena, such as weak anti-localization and the Aharonov-Bohm effect, to verify in a transport experiment the Dirac nature of the surface state of a topological insulator and its defining properties. In addition to explaining the basic ideas and predictions of the theory, I provide a survey of recent experimental work.

Ref. Jens H. Bardarson and Joel E. Moore, arXiv:1209.3280 (to appear in Rep. Prog. Phys.)

* Please note that seminar must start promptly at 11:59 AM (due to room availability).  Please make every attempt to arrive on time.