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Nanomechanical displacement detection using coherent transport in graphene nanoribbon resonators          APS
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Nanomechanical displacement detection using coherent transport in ordered and
disordered graphene nanoribbon resonators
A. Isacsson
Department of Applied Physics, Chalmers Uni ...

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2Â¥: Originally posted by inkel at 2013-05-03 16:30:23
http://arxiv.org/pdf/1010.0508v1.pdf

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Nanomechanical displacement detection using coherent transport in ordered and
disordered graphene nanoribbon resonators
A. Isacsson
Department of Applied Physics, Chalmers University of Technology, SE-412 96 G¡§oteborg Sweden.
Corresponding author: andreas.isacsson@chalmers.se
(Dated: Version: October 5, 2010)
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. As the
electrons in graphene have a Fermi wavelength ¦ËF  a0  1.4 ¡ãA, 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 ǫ  (w/L)2 due
to a deflection w leads to a relative change in conductance ¦ÄG/G  (w2/a0L).
4Â¥2013-05-03 21:10:45
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