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Uniaxial Strain in Graphene by Raman Spectroscopy: G peak splitting, Gruneisen Parameters and Sample Orientation
T. M. G. Mohiuddin, A. Lombardo, R. R. Nair +10
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. Since its experimental discovery, graphene continues to attract enormous interes…
Infrared spectroscopy of electronic bands in bilayer graphene
A. B. Kuzmenko, E. van Heumen, D. van der Marel +4
We present infrared spectra (0.1-1 eV) of electrostatically gated bilayer graphene as a function of doping and compare it with tight binding calculations. All major spectral featur…
Control of graphene's properties by reversible hydrogenation
D. C. Elias, R. R. Nair, T. M. G. Mohiuddin +8
Graphene - a monolayer of carbon atoms densely packed into a hexagonal lattice - has one of the strongest possible atomic bonds and can be viewed as a robust atomic-scale scaffold,…
Quantum resistance metrology in graphene
A. J. M. Giesbers, G. Rietveld, E. Houtzager +5
We have performed a metrological characterization of the quantum Hall resistance in a 1 m wide graphene Hall-bar. The longitudinal resistivity in the center of the qua…
Effect of high-k environment on charge carrier mobility in graphene
L. A. Ponomarenko, R. Yang, T. M. Mohiuddin +7
It is widely assumed that the dominant source of scattering in graphene is charged impurities in a substrate. We have tested this conjecture by studying graphene placed on various…
Macroscopic graphene membranes and their extraordinary stiffness
T. J. Booth, P. Blake, R. R. Nair +8
The properties of suspended graphene are currently attracting enormous interest, but the small size of available samples and the difficulties in making them severely restrict the n…