Nonlinearities, Dissipation and Noise in graphene nanoresonators

Graphene has since its isolation and characterization in 2004 seen a dramatic development. Mostly, the interest have been focused around the electronic properties of the material. The mechanical properties are, however, equally outstanding. With its ultra-low mass, large stiffness and elastic behavior, it is the ultimate material for use in two dimensional nanoelectromechanical systems (NEMS). Since 2006, the already expanding field of NEMS, has seen a near exponential increase in the interest in graphene NEMS. While the potential of graphene lies in the unique material properties, the same properties has also lead to a series of unexplained experimental results, differing markedly from results valid for other NEMS/MEMS system. Among these are foremost the behavior of the strong nonlinear properties, dissipation and noise. As graphene is a truly nano-scale NEMS system, it is to expect that dynamic processes at this scale, such as electron transport, local defects, ripples, etc., can greatly affect system properties.

Participants

Andreas Isacsson (contact)

Biträdande professor vid Chalmers, Physics, Condensed Matter Theory

Edit Ahlberg Helgee

Forskare vid Chalmers, Physics, Condensed Matter Theory

Alexander Croy

Forskare vid Chalmers, Physics, Condensed Matter Theory

Christin Rhen

Doktorand vid Chalmers, Physics, Condensed Matter Theory

Aurora Voje

Doktorand vid Chalmers, Physics, Condensed Matter Theory

Funding

Swedish Research Council (VR)

Funding years 2012–2015

More information

Project Web Page at Chalmers

http://www.chalmers.se/sv/projekt/Sidor/Ic...

Created

2015-02-16