Publication
Title
Valley polarization due to trigonal warping on tunneling electrons in graphene
Author
Abstract
The effect of trigonal warping on the transmission of electrons tunneling through potential barriers in graphene is investigated. We present calculations of the transmission coefficient for single and double barriers as a function of energy, incidence angle and barrier heights. The results show remarkable valley-dependent directional effects for barriers oriented parallel to the armchair or parallel to the zigzag direction. These results indicate that electrostatic gates can be used as valley filters in graphene-based devices.
Language
English
Source (journal)
Journal of physics : condensed matter. - London
Publication
London : 2009
ISSN
0953-8984
Volume/pages
21:4(2009), p. 045301,1-045301,4
ISI
000262354700004
Full text (Publishers DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 30.04.2009
Last edited 21.05.2017
To cite this reference