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Imaging mechanical vibrations in suspended graphene sheets
D. Garcia-Sanchez, A. M. van der Zande, A. San Paulo +3
We carried out measurements on nanoelectromechanical systems based on multilayer graphene sheets suspended over trenches in silicon oxide. The motion of the suspended sheets was el…
Impermeable Atomic Membranes from Graphene Sheets
J. Scott Bunch, Scott S. Verbridge, Jonathan S. Alden +4
We demonstrate that a monolayer graphene membrane is impermeable to standard gases including helium. By applying a pressure difference across the membrane, we measure both the elas…
Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
F. Kuemmeth, S. Ilani, D. C. Ralph +1
Electrons in atoms possess both spin and orbital degrees of freedom. In non-relativistic quantum mechanics, these are independent, resulting in large degeneracies in atomic spectra…