Symmetries and the conductance of graphene nanoribbons with long-range disorder

URN to cite this document:: urn:nbn:de:bvb:355-epub-240623
DOI to cite this document:: 10.5283/epub.24062

Wurm, Jürgen ; Wimmer, Michael ; Richter, Klaus

Preview

PDF - Published Version
(879kB)

Preview

PDF - Submitted Version
arXiv PDF (25.11.2011)
(1MB)

Date of publication of this fulltext: 27 Apr 2012 06:29

Alternative links to fulltext:DOI Arxiv Publisher Publisher

Details

Preview

Preview: arXiv PDF (25.11.2011)

Export bibliographical data

Abstract

We study the conductance of graphene nanoribbons with long-range disorder. Due to the absence of intervalley scattering from the disorder potential, time-reversal symmetry (TRS) can be effectively broken even without a magnetic field, depending on the type of ribbon edge. Even though armchair edges generally mix valleys, we show that metallic armchair nanoribbons possess a hidden pseudovalley ...