Nanomechanical displacement detection using coherent transport in graphene nanoribbon resonators
Journal article, 2011

Graphene nanoribbons provide an opportunity to integrate phase-coherent transport phenomena with nanoelectromechanical systems (NEMS). Due to the strain induced by a deflection in a graphene nanoribbon resonator, coherent electron transport and mechanical deformations couple. This coupling can be used for sensitive displacement detection in both armchair and zigzag graphene nanoribbon NEMS. Here it is shown that for ordered as well as disordered ribbon systems of length L, a strain epsilon similar to (w/L)(2) due to a deflection w leads to a relative change in conductance delta G/G similar to (w(2)/a(0)L), where a(0) approximate to 1.4 angstrom.

films

electronic-structure

sheets

systems

suspended graphene

carbon nanotubes

Author

Andreas Isacsson

Chalmers, Applied Physics, Condensed Matter Theory

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 84 12

Quantum Nanoelectromechanical Systems (QNEMS)

European Commission (FP7), 2009-09-01 -- 2012-08-31.

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Physical Sciences

DOI

10.1103/PhysRevB.84.125452

More information

Created

10/8/2017