Geometric magnetoconductance dips by edge roughness in graphene nanoribbons
2012 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 97, no 2, 28008- p.Article in journal (Refereed) Published
The magnetoconductance of graphene nanoribbons with rough zigzag and armchair edges is studied by numerical simulations. Nanoribbons with sufficiently small bulk disorder show a pronounced magnetoconductance minimum at cyclotron radii close to the ribbon width, in close analogy to the wire peak observed in conventional semiconductor quantum wires. In zigzag nanoribbons, this feature becomes visible only above a threshold amplitude of the edge roughness, as a consequence of the reduced current density close to the edges.
Place, publisher, year, edition, pages
Institute of Physics / EDP Sciences , 2012. Vol. 97, no 2, 28008- p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-75734DOI: 10.1209/0295-5075/97/28008ISI: 000300259100046OAI: oai:DiVA.org:liu-75734DiVA: diva2:508687
Funding Agencies|Heinrich-Heine-Universitat Dusseldorf||2012-03-092012-03-092012-03-09