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Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations | | R. I. Shekhter
; L. Y. Gorelik
; L. I. Glazman
; M. Jonson
; | | Date: |
16 Jun 2006 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | Mechanical displacements of a nanoelectromechanical system (NEMS) shift the electron trajectories and hence perturb phase coherent charge transport through the device. We show theoretically that in the presence of a magnetic feld 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. | | Source: | arXiv, cond-mat/0606437 | | Other source: | [GID 870104] pmid17155349 | | Services: | Forum | Review | PDF | Favorites | |
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