Nanomechanical displacement detection using coherent transport in graphene nanoribbon resonators
Artikel i vetenskaplig tidskrift, 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

Författare

Andreas Isacsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 84

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Fysik

DOI

10.1103/PhysRevB.84.125452