Edge Magneto-Fingerprints in Disordered Graphene Nanoribbons

Jean-Marie Poumirol; Alessandro Cresti; Stephan Roche; Walter Escoffier; Michel Goiran; Xinran Wang; Xiaolin Li; Hongjie Dai; Bertrand Raquet

doi:10.1103/PhysRevB.82.041413

Edge Magneto-Fingerprints in Disordered Graphene Nanoribbons

Mesoscale and Nanoscale Physics 2015-05-18 v1

Authors: Jean-Marie Poumirol , Alessandro Cresti , Stephan Roche , Walter Escoffier , Michel Goiran , Xinran Wang , Xiaolin Li , Hongjie Dai , Bertrand Raquet

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Abstract

We report on (magneto)-transport experiments in chemically derived narrow graphene nanoribbons under high magnetic fields (up to 60 Tesla). Evidences of field-dependent electronic confinement features are given, and allow estimating the possible ribbon edge symmetry. Besides, the measured large positive magnetoconductance indicates a strong suppression of backscattering induced by the magnetic field. Such scenario is supported by quantum simulations which consider different types of underlying disorders (smooth edge disorder and long range Coulomb scatters).

Keywords

graphene nanoribbons magnetotransport edge disorder quantum confinement backscattering suppression high magnetic field

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@article{arxiv.1002.4571,
  title  = {Edge Magneto-Fingerprints in Disordered Graphene Nanoribbons},
  author = {Jean-Marie Poumirol and Alessandro Cresti and Stephan Roche and Walter Escoffier and Michel Goiran and Xinran Wang and Xiaolin Li and Hongjie Dai and Bertrand Raquet},
  journal= {arXiv preprint arXiv:1002.4571},
  year   = {2015}
}

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4 pages, 4 figures

Edge Magneto-Fingerprints in Disordered Graphene Nanoribbons

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