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Electronic Aharonov-Bohm effect induced by quantum vibrations

Robert I. Shekhter ; Leonid Y. Gorelik (Institutionen för teknisk fysik, Kondenserade materiens teori) ; L.I. Glazman ; Mats Jonson
Physical Review Letters (0031-9007). Vol. 97 (2006), 15, p. 156801.
[Artikel, refereegranskad vetenskaplig]

Mechanical displacements of a nanoelectromechanical system shift the electron trajectories and hence perturb phase coherent charge transport through the device. We show theoretically that in the presence of a magnetic field such quantum-coherent displacements may give rise to an Aharonov-Bohm-type of effect. In particular, we demonstrate that quantum vibrations of a suspended carbon nanotube result in a positive nanotube magnetoresistance, which decreases slowly with the increase of temperature. This effect may enable one to detect quantum displacement fluctuations of a nanomechanical device.



Denna post skapades 2006-12-18. Senast ändrad 2009-09-14.
CPL Pubid: 23269

 

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Institutioner (Chalmers)

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

Ämnesområden

Teknisk fysik

Chalmers infrastruktur