CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Spin-controlled nanomechanics induced by single-electron tunneling

Danko Radic (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Anders Nordenfelt ; Anatoli M. Kadigrobov ; Robert I. Shekhter ; Mats Jonson ; Leonid Y. Gorelik (Institutionen för teknisk fysik, Kondenserade materiens teori)
Physical Review Letters (0031-9007). Vol. 107 (2011), 23,
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Nanomechanics, single-electron tunneling, spintronics



Denna post skapades 2011-12-02. Senast ändrad 2014-03-24.
CPL Pubid: 149398

 

Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)
Institutionen för fysik (GU) (GU)

Ämnesområden

Mesoskopisk fysik

Chalmers infrastruktur

 


Projekt

Denna publikation är ett resultat av följande projekt:


Quantum nanoelectromechanical systems (QNEMS) (EC/FP7/233992)