Carbon nanostructures as an electromechanical bicontinuum |
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Authors: | Nisoli Cristiano Lammert Paul E Mockensturm Eric Crespi Vincent H |
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Institution: | Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA. |
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Abstract: | A two-field model provides a unifying framework for elasticity, lattice dynamics and electromechanical coupling in graphene and carbon nanotubes, describes optical phonons, nontrivial acoustic branches, strain-induced gap opening, gap-induced phonon softening, doping-induced deformations, and even the hexagonal graphenic Brillouin zone, and thus explains and extends a previously disparate accumulation of analytical and computational results. |
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