Current at a distance and resonant transparency in Weyl semimetals

by Yuval Baum

at Condensed Matter Seminar

Mon, 16 Nov 2015, 11:30
Physics building (#54) room 207

Abstract

Surface Fermi arcs are the most prominent manifestation of the topological nature of Weyl semimetals In the presence of a static magnetic field oriented perpendicular to the sample surface their existence leads to unique inter surface cyclotron orbits We propose two experiments which directly probe the Fermi arcs: a magnetic field dependent non local DC voltage and sharp resonances in the transmission of electromagnetic waves at frequencies controlled by the field We show that these experiments do not rely on quantum mechanical phase coherence which renders them far more robust and experimentally accessible than quantum effects We also comment on the applicability of these ideas to Dirac semimetals

Created on 10-11-2015 by Bar Lev, Yevgeny (ybarlev)
Updaded on 10-11-2015 by Bar Lev, Yevgeny (ybarlev)