期刊
APPLIED PHYSICS LETTERS
卷 101, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4771982
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资金
- [TEC2009-14517-C02-01]
- [CSD2010-00024]
The frequency response of double-clamped bottom-up grown silicon nanowires is measured electrically by means of a frequency modulation (FM) detection scheme. In comparison with other electrical methods, FM detection is simpler and it allows the use of smaller actuation signals. We have been able to resolve the first three mechanical resonance modes up to frequencies higher than 350 MHz. The FM detection scheme relies on a transduction mechanism that presents a linear dependence of the change of conductance with the nanowire deflection/actuation signal. The modeling of the system corroborates that two different transduction mechanisms (linear and quadratic) co-exist. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4771982]
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