A high quality factor carbon nanotube mechanical resonator at 39 GHz

Laird, Edward A. and Pei, Fei and Tang, Wei and Steele, Gary A. and Kouwenhoven, Leo P. (2012) A high quality factor carbon nanotube mechanical resonator at 39 GHz. Nano Letters, 12 (1). pp. 193-197. ISSN 1530-6984

Full text not available from this repository.

Abstract

We measure the mechanical resonances of an as-grown suspended carbon nanotube, detected via electrical mixing in the device. A sequence of modes extending to 39 GHz is observed with a quality factor of 35 000 in the highest mode. This unprecedentedly high combination corresponds to a thermal excited state probability below 10–8 and a relaxation time of 140 ns with microsecond relaxation times for lower modes. The effect of electron tunneling on the mechanical resonance is found to depend on frequency as the tunneling time becomes comparable to the vibration period.

Item Type:
Journal Article
Journal or Publication Title:
Nano Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
124378
Deposited By:
Deposited On:
04 Apr 2018 12:54
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Jul 2020 04:37