2010/07/23 by A. A. Shylau, Igor Zozoulenko, I. V. Zozoulenko +3 · 2 citations
Materials Science · Physics and Astronomy · #Graphene research and applications #Magnetic properties of thin films #Quantum and electron transport phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.82.121410
published as Phys. Rev. B 82, 121410 (2010) · 4 pages, 3 figures
arxiv created 2010/07/23 · openalex publication_date 2010/09/15 · arxiv updated 2014/02/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The effects of electron interaction on the magnetoconductance of graphene nanoribbons (GNRs) are studied within the Hartree approximation. We find that a perpendicular magnetic field leads to a suppression instead of an expected improvement of the quantization. This suppression is traced back to interaction-induced modifications of the band structure leading to the formation of compressible strips in the middle of GNRs. It is also shown that the hard-wall confinement combined with electron interaction generates overlaps between forward and backward propagating states, which may significantly enhance backscattering in realistic GNRs. The relation to available experiments is discussed.