超高频纳米管谐振器。

Ultrahigh frequency nanotube resonators.

作者信息

Peng H B, Chang C W, Aloni S, Yuzvinsky T D, Zettl A

机构信息

Department of Physics and Center of Integrated Nanomechanical Systems, University of California at Berkeley, and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.

出版信息

Phys Rev Lett. 2006 Aug 25;97(8):087203. doi: 10.1103/PhysRevLett.97.087203. Epub 2006 Aug 22.

DOI:10.1103/PhysRevLett.97.087203

PMID:17026328

Abstract

We report carbon-nanotube-based electromechanical resonators with the fundamental mode frequency over 1.3 GHz, operated in air at room temperature. A new combination of drive and detection methods allows for unprecedented measurement of both oscillation amplitude and phase and elucidates the relative mobility of static charges near the nanotube. The resonator serves as an exceptionally sensitive mass detector capable of approximately 10(-18) g resolution.

摘要

我们报道了基于碳纳米管的机电谐振器，其基模频率超过1.3 GHz，可在室温空气中运行。驱动和检测方法的新组合实现了对振荡幅度和相位前所未有的测量，并阐明了纳米管附近静态电荷的相对迁移率。该谐振器是一种极其灵敏的质量探测器，分辨率可达约10^(-18)克。