Conductance fluctuations in graphene subjected to short-range disorder

Bobo Liu, Richard Akis, David K. Ferry

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Conductance fluctuations in graphene nanoribbons with a disordered, short-range potential are numerically studied. The authors carry out Fermi energy sweeps at different magnetic fields and magnetic field sweeps at a fixed Fermi energy to examine whether universality and ergodicity hold in graphene. The authors find that there is no universality of the fluctuations. The amplitude of fluctuations has a dependence on disorder strength. Further, Fermi energy sweeps have stronger fluctuation amplitudes than magnetic field sweeps, demonstrating a lack of ergodicity. In addition, the magnetic field does not significantly affect the fluctuation amplitude of Fermi energy sweeps.

Original languageEnglish (US)
Article number04E101
JournalJournal of Vacuum Science and Technology B: Nanotechnology and Microelectronics
Volume33
Issue number4
DOIs
StatePublished - Jul 1 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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