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  • Title: Magnetic response of conductance peak structure in junction-confined graphene nanoribbons.
    Author: Yamamoto M, Wakabayashi K.
    Journal: Nanoscale; 2012 Feb 21; 4(4):1138-45. PubMed ID: 22080960.
    Abstract:
    We have numerically investigated the magnetic response of the conductance peak structures in the transport gap of graphene nanoribbons. It is shown that the magnetic field induces a number of new conductance peaks within the transport gap of graphene nanoribbons confined by structural junctions. In addition, the magnetic field causes a shift of the conductance peak position and broadening of the peak width. This behaviour is due to the disappearance of zero conductance dips at the junction as a result of breaking time-reversal symmetry. Such behaviour is, however, not observed in the electronic transport of graphene nanoribbons confined by potential barriers, i.e. p-n-junctions. Thus, the magnetic response of conductance peaks may be used to distinguish the origin of the conductance peak structure within the transport gap observed in the experiments.
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