High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout: Double Relaxation Oscillation SQUIDs

D.J. Adelerhof; M.J. van Duuren; J. Flokstra; H. Rogalla; J. Kawai; H. Kado

doi:10.1109/77.403011

High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout: Double Relaxation Oscillation SQUIDs

D.J. Adelerhof, M.J. van Duuren, J. Flokstra, H. Rogalla, J. Kawai, H. Kado

Faculty of Science and Technology

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

13 Citations (Scopus)

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Abstract

The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations. The experimental sensitivity ranges from 60 to 13h, where h is Planck's constant, for relaxation frequencies from 0.4 up to 10 GHz. For low frequencies the DROS characteristics can be explained by thermal noise on the critical currents. For high frequencies, the voltage-flux characteristics and the sensitivity are limited by the plasma frequency. The cross-over frequency is at 2 GHz, which is about 2% of the plasma frequency of the DROSs

Original language	English
Pages (from-to)	2160-2163
Journal	IEEE transactions on applied superconductivity
Volume	5
Issue number	5
DOIs	https://doi.org/10.1109/77.403011
Publication status	Published - 1995
Event	1994 Applied Superconductivity Conference, ASC 1994 - Boston, United States Duration: 15 Oct 1994 → 20 Oct 1994

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Adelerhof1995highFinal published version, 332 KB

13 Citations
1 Poster

High sensitivity magnetic flux sensors with direct voltage readout: Double Relaxation Oscillation SQUIDs
Adelerhof, D. J., van Duuren, M. J., Flokstra, J., Rogalla, H., Kawai, J. & Kado, H., 21 Oct 1994.
Research output: Contribution to conference › Poster › Other research output

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title = "High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout: Double Relaxation Oscillation SQUIDs",

abstract = "The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations. The experimental sensitivity ranges from 60 to 13h, where h is Planck's constant, for relaxation frequencies from 0.4 up to 10 GHz. For low frequencies the DROS characteristics can be explained by thermal noise on the critical currents. For high frequencies, the voltage-flux characteristics and the sensitivity are limited by the plasma frequency. The cross-over frequency is at 2 GHz, which is about 2% of the plasma frequency of the DROSs",

author = "D.J. Adelerhof and {van Duuren}, M.J. and J. Flokstra and H. Rogalla and J. Kawai and H. Kado",

year = "1995",

doi = "10.1109/77.403011",

language = "English",

volume = "5",

pages = "2160--2163",

journal = "IEEE transactions on applied superconductivity",

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note = "1994 Applied Superconductivity Conference, ASC 1994, ASC ; Conference date: 15-10-1994 Through 20-10-1994",

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T1 - High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout

T2 - 1994 Applied Superconductivity Conference, ASC 1994

AU - Adelerhof, D.J.

AU - van Duuren, M.J.

AU - Flokstra, J.

AU - Rogalla, H.

AU - Kawai, J.

AU - Kado, H.

PY - 1995

Y1 - 1995

N2 - The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations. The experimental sensitivity ranges from 60 to 13h, where h is Planck's constant, for relaxation frequencies from 0.4 up to 10 GHz. For low frequencies the DROS characteristics can be explained by thermal noise on the critical currents. For high frequencies, the voltage-flux characteristics and the sensitivity are limited by the plasma frequency. The cross-over frequency is at 2 GHz, which is about 2% of the plasma frequency of the DROSs

AB - The experimental sensitivity of double relaxation oscillation SQUIDs (DROSs) has been compared with theory and with the results obtained by numerical simulations. The experimental sensitivity ranges from 60 to 13h, where h is Planck's constant, for relaxation frequencies from 0.4 up to 10 GHz. For low frequencies the DROS characteristics can be explained by thermal noise on the critical currents. For high frequencies, the voltage-flux characteristics and the sensitivity are limited by the plasma frequency. The cross-over frequency is at 2 GHz, which is about 2% of the plasma frequency of the DROSs

U2 - 10.1109/77.403011

DO - 10.1109/77.403011

M3 - Article

SN - 1051-8223

VL - 5

SP - 2160

EP - 2163

JO - IEEE transactions on applied superconductivity

JF - IEEE transactions on applied superconductivity

IS - 5

Y2 - 15 October 1994 through 20 October 1994

ER -

High Sensitivity Magnetic Flux Sensors with Direct Voltage Readout: Double Relaxation Oscillation SQUIDs

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High sensitivity magnetic flux sensors with direct voltage readout: Double Relaxation Oscillation SQUIDs

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