Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-09-21
Phys. Rev. Lett. 105, 207203 (2010)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Submitted to Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.105.207203
We have measured the backaction of a dc superconducting quantum interference device (SQUID) position detector on an integrated 1 MHz flexural resonator. The frequency and quality factor of the micromechanical resonator can be tuned with bias current and applied magnetic flux. The backaction is caused by the Lorentz force due to the change in circulating current when the resonator displaces. The experimental features are reproduced by numerical calculations using the resistively and capacitively shunted junction (RCSJ) model.
Blanter Ya M.
der Zant Herre S. J. van
Etaki S.
Mahboob I.
Onomitsu K.
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