Friday, 4 November 2005 - 8:00 AM
574a
Nonlinear (Electro)Mechanical Properties of Carbon Nanostructures
Vincent H. Crespi1, Paul Lammert
1, Eric Mockensturm
2, Cristiano Nisoli
1, and Stephen Jordan
3. (1) Physics and Materials Science and Engineering, Penn State University, 104 Davey Lab MB163, University Park, PA 16802, (2) Mechanical Engineering, Penn State University, 104 Davey Lab MB163, University Park, PA 16802, (3) Physics, MIT, Cambridge
High-symmetry carbon nanostructures such as cones and tubes can have unusual nonlinear mechanical properties due to surface energies, lattice commensurations, and multiple degenerate conformations. These deformations can then couple to the low-energy electronic properties due to the sensitivity of the graphene Fermi points to symmetry-lowering deformations. Simulation results include models for constant-force springs, nanothermometers, and nanoactuators.
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