Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations
介观与纳米尺度物理
2009-11-11 v1
摘要
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.
引用
@article{arxiv.cond-mat/0606437,
title = {Electronic Aharonov-Bohm Effect Induced by Quantum Vibrations},
author = {R. I. Shekhter and L. Y. Gorelik and L. I. Glazman and M. Jonson},
journal= {arXiv preprint arXiv:cond-mat/0606437},
year = {2009}
}
备注
4 pages, 3 figures