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Electronic Aharonov-Bohm effect induced by quantum vibrations | R I Shekhter
; L Y Gorelik
; L I Glazman
; M Jonson
; | Date: |
13 Oct 2006 | Journal: | Phys Rev Lett, 97 (15), 156801 | Abstract: | 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. | Source: | PubMed, pmid17155349 | Other source: | [GID 870104] cond-mat/0606437 | Services: | Forum | Review | Favorites |
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