Measurement of scattering rate and minimum conductivity in graphene.
By Yan-Wen Tan, Yuanbo Zhang, K. Bolotin, Yue Zhao, S. Adam, E. Hwang, Horst L. Stormer, Philip Kim. Physical Review Letters, 2007
868 citations recorded by the source corpus.
The conductivity of graphene samples with various levels of disorder is investigated for a set of specimens with mobility in the range of 1-20x10(3) cm2/V sec. Comparing the experimental data with the theoretical transport calculations based on charged impurity scattering, we estimate that the impurity concentration in the samples varies from 2-15x10(11) cm(-2). In the low carrier density limit, the conductivity exhibits values in the range of 2-12e2/h, which can be related to the residual density induced by the inhomogeneous charge distribution in the samples. The shape of the conductivity curves indicates that high mobility samples contain some short-range disorder whereas low mobility samples are dominated by long-range scatterers.
Subfields: Materials Chemistry, Surfaces, Coatings and Films
View Paper: https://www.semanticscholar.org/paper/16bb45dc4185671d15f46b61374167767bd5e07c
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In Materials Chemistry
In Surfaces, Coatings and Films
Citations in the corpus
- Colloquium: Graphene spectroscopy (2014, background): “This is a qualitative explanation for nonvanishing conductivity (Chen et al., 2008; Geim and Novoselov, 2007; Tan et al., 2007) and TDOS (Martin et al., 2008).”