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Measurement of Scattering Rate and Minimum Conductivity in Graphene Y.-W. Tan,1,* Y. Zhang,1,* K. Bolotin,1
 

Summary: Measurement of Scattering Rate and Minimum Conductivity in Graphene
Y.-W. Tan,1,* Y. Zhang,1,* K. Bolotin,1
Y. Zhao,1
S. Adam,2
E. H. Hwang,2
S. Das Sarma,2
H. L. Stormer,1,3,4
and P. Kim1
1
Department of Physics, Columbia University, New York, New York 10027, USA
2
Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
3
Department of Applied Physics, Columbia University, New York, New York 10027, USA
4
Bell Labs, Alcatel-Lucent Technologies, Murray Hill, New Jersey 07974, USA
(Received 12 July 2007; published 14 December 2007)
The conductivity of graphene samples with various levels of disorder is investigated for a set of
specimens with mobility in the range of 120 103 cm2=V sec . Comparing the experimental data with
the theoretical transport calculations based on charged impurity scattering, we estimate that the impurity

  

Source: Adam, Shaffique - Condensed Matter Theory Center, University of Maryland at College Park
Kim, Philip - Center for Electron Transport in Molecular Nanostructures & Department of Physics, Columbia University

 

Collections: Materials Science; Physics