Probing Dirac Electron Physics in Graphitic Materials

Date: 
Monday, April 11, 2016 - 4:15pm
Author/Speaker: 
Affiliation: 
UC Berkeley
Public Lecture: 
Yes
Webcast: 

Electrons in monolayer graphene are described by massless Dirac electrons, which exhibit unique quantum phenomena due to the pseudospin and Berry phase of the massless electrons. In this talk, I will discuss our effort in probing massive Dirac electrons in gapped bilayer graphene, where a finite mass can be continuously engineered and a mass domain wall with topologically protected transport can be realized.  I will also discuss one-dimensional plasmon arising from Luttinger liquid of Dirac electrons in metallic carbon nanotubes, which exhibit semi-quantized propagation speed and remarkable sub-wavelength plasmon confinement.