Title of article :
Mesoscopic conductance fluctuations in graphene
Author/Authors :
Horsell، نويسنده , , D.W. and Savchenko، نويسنده , , A.K. and Tikhonenko، نويسنده , , F.V. and Kechedzhi، نويسنده , , K. and Lerner، نويسنده , , I.V. and Fal’ko، نويسنده , , V.I.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
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.
Keywords :
C. Impurities in semiconductors , D. Quantum localization , A. Nanostructures , D. Electronic transport
Journal title :
Solid State Communications
Journal title :
Solid State Communications