The European Physical Journal B

, 85:356

Relativistic Brownian motion on a graphene chip

  • A. Pototsky
  • F. Marchesoni
  • F. V. Kusmartsev
  • P. Hänggi
  • S. E. Savel’ev
Regular Article

DOI: 10.1140/epjb/e2012-30716-7

Cite this article as:
Pototsky, A., Marchesoni, F., Kusmartsev, F.V. et al. Eur. Phys. J. B (2012) 85: 356. doi:10.1140/epjb/e2012-30716-7

Abstract

Relativistic Brownian motion can be inexpensively demonstrated on a graphene chip. The interplay of stochastic and relativistic dynamics, governing the transport of charge carrier in graphene, induces noise-controlled effects such as (i) a stochastic effective mass, detectable as a suppression of the particle mobility with increasing the temperature; (ii) transverse harmonic mixing, whereby electron transport can be controlled by two orthogonal, commensurate ac drives; (iii) a transverse ratchet effect, measurable as a net current orthogonal to an ac drive on an asymmetric substrate, and (iv) chaotic stochastic resonance. Such properties can be of practical applications in the emerging graphene technology.

Keywords

Statistical and Nonlinear Physics

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • A. Pototsky
    • 1
  • F. Marchesoni
    • 2
  • F. V. Kusmartsev
    • 3
  • P. Hänggi
    • 4
  • S. E. Savel’ev
    • 3
  1. 1.Department of MathematicsUniversity of Cape TownRondeboschSouth Africa
  2. 2.Dipartimento di FisicaUniversità di CamerinoCamerinoItaly
  3. 3.Department of PhysicsLoughborough UniversityLoughboroughUK
  4. 4.Institut für PhysikUniversität AugsburgAugsburgGermany