Self-organization of irregular nanoelectromechanical vibrations in multimode shuttle structures
Artikel i vetenskaplig tidskrift, 2008

We investigate theoretically multimode electromechanical "shuttle" instabilities in dc voltage-biased nanoelectromechanical single-electron tunneling devices. We show that initially irregular (quasiperiodic) oscillations that occur as a result of the simultaneous self-excitation of several mechanical modes with incommensurable frequencies self-organize into periodic oscillations with a frequency corresponding to the eigenfrequency of one of the unstable modes. This effect demonstrates that a local probe can selectively excite global vibrations of extended objects.

shuttling

carbon nanotube

nanoelectromechanics

Författare

Magnus Jonsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Fabio Santandrea

Göteborgs universitet

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 100 186802-

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1103/PhysRevLett.100.186802