A high quality factor carbon nanotube mechanical resonator at 39 GHz.

Journal article

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...

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Authors: Laird, E; Pei, F; Tang, W; Steele, G; Kouwenhoven, L

• Publication status: Published
• Journal: Nano letters
• Volume: 12
• Issue: 1
• Pages: 193-197
• Publication date: 2012-01-01
• DOI: 10.1021/nl203279v
• EISSN: 1530-6992
• ISSN: 1530-6984
• Language: English
• Keywords: Nanotubes, Carbon; Electric Impedance; Materials Testing; Micro-Electrical-Mechanical Systems; Equipment Design; Vibration; Stress, Mechanical; Equipment Failure Analysis; Particle Size; Microwaves