Physics Department

CATEGORY:
Solid State Seminar
TITLE:
Disorder-driven transition in Dirac semimetals and semiconductors
Speaker:
Leo Radzihovsky
Affiliation:
University of Colorado at Boulder
WHEN:
Sunday
19/02/2017, 14:30
WHERE:
Lidow, Nathan Rosen (300)
Organizer:
-
Site:
-
Remarks:
-

Abstract

Motivated by Weyl semimetals and weakly doped semiconductors, I will discuss recent work on non-Anderson disorder-driven criticality in weakly doped semimetals and semiconductors. I will show that above a critical dimensions at low-electron density these systems generically exhibit a novel disorder-driven quantum phase transition that manifests itself in the critical behavior of the single particle density of states, electrical transport, wavefunction multi-fractality and other observables. These can be computed via a controlled renormalization-group analysis.

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