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Title

Underlying mechanisms of the self-sustained oscillation of a nanomechanical stochastic resonator in a liquid

AuthorsTamayo de Miguel, Francisco Javier CSIC ORCID; Calleja, Montserrat CSIC ORCID ; Ramos Vega, Daniel CSIC ORCID; Mertens, Johann CSIC ORCID
KeywordsDamping
Oscillations
Resonators
Issue Date1-Nov-2007
PublisherAmerican Physical Society
CitationPhysical Review B 76, 180201(R) (2007)
AbstractWe study the stochastic response of a nanomechanical resonator in a liquid connected to a feedback loop to increase the quality (Q) factor. We distinguish two regimes in the oscillation. Below a critical value of the feedback gain, an effective increase of the Q factor and temperature is produced. When the gain surpasses the critical value, the resonator initially behaves as having negative damping until the saturation of the system comes into play and a steady situation is reached. In this regime, frequency stabilities of about 1 part per 106 can be achieved.
Publisher version (URL)http://link.aps.org
http://dx.doi.org/10.1103/PhysRevB.76.180201
URIhttp://hdl.handle.net/10261/13890
DOI10.1103/PhysRevB.76.180201
ISSN1098-0121
Appears in Collections:(IMN-CNM) Artículos

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