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Quantum shuttle phenomena in a nanoelectromechanical single-electron transistor

Dmytro Fedorets ; Leonid Y. Gorelik (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Robert I. Shekhter ; Mats Jonson (Institutionen för teknisk fysik, Kondenserade materiens teori)
Physical Review Letters (0031-9007). Vol. 92 (2004), p. 166801.
[Artikel, refereegranskad vetenskaplig]

An analytical analysis of quantum shuttle phenomena in a nanoelectromechanical single-electron transistor has been performed in the realistic case, when the electron tunneling length is much greater than the amplitude of the zero point oscillations of the central island. It is shown that when the dissipation is below a certain threshold value, the vibrational ground state of the central island is unstable. The steady state into which this instability develops is studied. It is found that if the electric field E between the leads is much greater than a characteristic value E-q, the quasiclassical shuttle picture is recovered, while if E0) shuttle vibrations.



Denna post skapades 2007-10-04. Senast ändrad 2010-01-26.
CPL Pubid: 51390

 

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Institutioner (Chalmers)

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

Ämnesområden

Fysik
Mesoskopisk fysik

Chalmers infrastruktur