Theory of Carbomorph Cycles
OE Shklyaev and E Mockensturm and VH Crespi, PHYSICAL REVIEW LETTERS, 110, 156803 (2013).
We present a theory of a reversibly deforming sp(2)-carbon-based system controlled by competing strain, surface, and electrostatic energies, a carbomorph. For example, external forces (such as electrostatic, chemical, interfacial) could convert a bistable carbon nanotube between the collapsed and inflated states. Such a system could operate as a voltage-controlled constant-force spring, a charge-controlled harmonic spring, or an electromechanical engine or generator (with linear stroke up to few microns) driven across a propagating quasi-one-dimensional structural phase transition. DOI: 10.1103/PhysRevLett.110.156803
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