Tunable backaction of a DC SQUID on an integrated micromechanical resonator

M. Poot; S. Etaki; I. Mahboob; K. Onomitsu; H. Yamaguchi; Ya M. Blanter; H. S.J. Van Der Zant

doi:10.1103/PhysRevLett.105.207203

Tunable backaction of a DC SQUID on an integrated micromechanical resonator

M. Poot, S. Etaki, I. Mahboob, K. Onomitsu, H. Yamaguchi, Ya M. Blanter, H. S.J. Van Der Zant

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

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 model.

Original language	English
Article number	207203
Journal	Physical Review Letters
Volume	105
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.105.207203
State	Published - 10 Nov 2010
Externally published	Yes

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10.1103/PhysRevLett.105.207203

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abstract = "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 model.",

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AU - Etaki, S.

AU - Mahboob, I.

AU - Onomitsu, K.

AU - Yamaguchi, H.

AU - Blanter, Ya M.

AU - Van Der Zant, H. S.J.

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AB - 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 model.

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Tunable backaction of a DC SQUID on an integrated micromechanical resonator

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