Spin-controlled nanomechanics induced by single-electron tunneling
Artikel i vetenskaplig tidskrift, 2011

We consider dc-electronic transport through a nanowire suspended between normal- and spin-polarized metal leads in the presence of an external magnetic field. We show that magnetomotive coupling between the electrical current through the nanowire and vibrations of the wire may result in self-excitation of mechanical vibrations. The self-excitation mechanism is based on correlations between the occupancy of the quantized electronic energy levels inside the nanowire and the velocity of the nanowire. We derive conditions for the occurrence of the instability and find stable regimes of mechanical oscillations.


single-electron tunneling



Danko Radic

Chalmers, Teknisk fysik, Kondenserade materiens teori

Anders Nordenfelt

Göteborgs universitet

Anatoli M. Kadigrobov

Göteborgs universitet

Robert I. Shekhter

Göteborgs universitet

Mats Jonson

Göteborgs universitet

Leonid Gorelik

Chalmers, Teknisk fysik, Kondenserade materiens teori

Physical Review Letters

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

Vol. 107 23

Quantum Nanoelectromechanical Systems (QNEMS)

Europeiska kommissionen (EU) (EC/FP7/233992), 2009-09-01 -- 2012-08-31.


Den kondenserade materiens fysik



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