Hysteresis and intermittency in direct-current superconducting quantum interference device with nanobridges fabricated on a thin membrane

Eran Segev; Oren Suchoi; Oleg Shtempluck; Fei Xue; Eyal Buks

doi:https://doi.org/10.1063/1.3549767

Hysteresis and intermittency in direct-current superconducting quantum interference device with nanobridges fabricated on a thin membrane

Eran Segev, Oren Suchoi, Oleg Shtempluck, Fei Xue, Eyal Buks

Technion - Israel Institute of Technology

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

Abstract

This study examined the voltage response of nanobridge-based direct-current superconducting quantum interference devices (dc-SQUIDs) fabricated on a Si₃ N₄ membrane. Such a configuration may help in reducing 1/f noise, which possibly originates from substrate fluctuating defects. Results showed that the poor thermal coupling between the dc-SQUID and the substrate leads to a strong hysteretic response of the superconducting quantum interference device (SQUID) even though it is biased by an alternating current. In addition, when the dc-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux threading the loop of the SQUID.

Original language	English
Article number	052504
Journal	Applied Physics Letters
Volume	98
Issue number	5
DOIs	https://doi.org/10.1063/1.3549767
State	Published - 31 Jan 2011

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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https://doi.org/10.1063/1.3549767

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title = "Hysteresis and intermittency in direct-current superconducting quantum interference device with nanobridges fabricated on a thin membrane",

abstract = "This study examined the voltage response of nanobridge-based direct-current superconducting quantum interference devices (dc-SQUIDs) fabricated on a Si3 N4 membrane. Such a configuration may help in reducing 1/f noise, which possibly originates from substrate fluctuating defects. Results showed that the poor thermal coupling between the dc-SQUID and the substrate leads to a strong hysteretic response of the superconducting quantum interference device (SQUID) even though it is biased by an alternating current. In addition, when the dc-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux threading the loop of the SQUID.",

author = "Eran Segev and Oren Suchoi and Oleg Shtempluck and Fei Xue and Eyal Buks",

note = "Funding Information: E.S. is supported by the Adams Fellowship Program of the Israel Academy of Sciences and Humanities. This work is supported by the German Israel Foundation under Grant No. 1-2038.1114.07, the Israel Science Foundation under Grant No. 1380021, the Deborah Foundation, the Russell Berrie Nanotechnology Institute, the Israeli Ministry of Science, the European STREP QNEMS project, and MAFAT.",

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doi = "https://doi.org/10.1063/1.3549767",

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T1 - Hysteresis and intermittency in direct-current superconducting quantum interference device with nanobridges fabricated on a thin membrane

AU - Segev, Eran

AU - Suchoi, Oren

AU - Shtempluck, Oleg

AU - Xue, Fei

AU - Buks, Eyal

N1 - Funding Information: E.S. is supported by the Adams Fellowship Program of the Israel Academy of Sciences and Humanities. This work is supported by the German Israel Foundation under Grant No. 1-2038.1114.07, the Israel Science Foundation under Grant No. 1380021, the Deborah Foundation, the Russell Berrie Nanotechnology Institute, the Israeli Ministry of Science, the European STREP QNEMS project, and MAFAT.

PY - 2011/1/31

Y1 - 2011/1/31

N2 - This study examined the voltage response of nanobridge-based direct-current superconducting quantum interference devices (dc-SQUIDs) fabricated on a Si3 N4 membrane. Such a configuration may help in reducing 1/f noise, which possibly originates from substrate fluctuating defects. Results showed that the poor thermal coupling between the dc-SQUID and the substrate leads to a strong hysteretic response of the superconducting quantum interference device (SQUID) even though it is biased by an alternating current. In addition, when the dc-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux threading the loop of the SQUID.

AB - This study examined the voltage response of nanobridge-based direct-current superconducting quantum interference devices (dc-SQUIDs) fabricated on a Si3 N4 membrane. Such a configuration may help in reducing 1/f noise, which possibly originates from substrate fluctuating defects. Results showed that the poor thermal coupling between the dc-SQUID and the substrate leads to a strong hysteretic response of the superconducting quantum interference device (SQUID) even though it is biased by an alternating current. In addition, when the dc-SQUID is biased near a threshold of spontaneous oscillations, the measured voltage has an intermittent pattern, which depends on the applied magnetic flux threading the loop of the SQUID.

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U2 - https://doi.org/10.1063/1.3549767

DO - https://doi.org/10.1063/1.3549767

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VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 5

M1 - 052504

ER -

Hysteresis and intermittency in direct-current superconducting quantum interference device with nanobridges fabricated on a thin membrane

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