Mesoscopic conductance fluctuations in graphene

Horsell, D. W. and Savchenko, A. K. and Tikhonenko, F. V. and Kechedzhi, K. and Lerner, I. V. and Falko, Vladimir (2009) Mesoscopic conductance fluctuations in graphene. Solid State Communications, 149 (27-28). pp. 1041-1045. ISSN 0038-1098

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Abstract

We study fluctuations of the conductance of micron-sized graphene devices as a function of the Fermi energy and magnetic field. The fluctuations are studied in combination with analysis of weak localization which is determined by the same scattering mechanisms. It is shown that the variance of conductance fluctuations depends not only on inelastic scattering that controls dephasing but also on elastic scattering. In particular, contrary to its effect on weak localization, strong intervalley scattering suppresses conductance fluctuations in graphene. The correlation energy, however, is independent of the details of elastic scattering and can be used to determine the electron temperature of graphene structures. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Solid State Communications
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
56998
Deposited By:
Deposited On:
16 Aug 2012 11:15
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Feb 2020 08:02