Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

The Japan Society of Applied Physics

Dependence of HTS rf-SQUID resonant frequency on its slit length (2)

Yuji Miyato

Published Jul 17, 2015• 0 citations
OpenAlex

Related papers

Substrate resonator for HTS rf SQUID operation

Y. Zhang, Jürgen Schubert, N. Wolters +3 more

Physica C Superconductivity•Aug 1, 2002•52 citations

Resonant frequency of high Tc rf-SQUID resonator

Akira Sakai

The Japan Society of Applied Physics•Jul 4, 2013•0 citations

Dependence on the pump frequency of the sensitivity of the rf SQUID

Reino I. Ker�nen, Juhani Kurkij�rvi

Journal of Low Temperature Physics•Nov 1, 1986•3 citations

Improved Characteristics of Integrated HTS rf SQUID on Bicrystal SrTiO3 Substrate Resonator Covered with HTS Thin Films in Flip-Chip Geometry

Yoshimi Hatsukade, Makoto TAKEMOTO, Ryuichi Kurosawa +2 more

Integrated high-temperature superconductor (HTS) radio-frequency (rf) superconducting quantum interference devices (SQUIDs) based on a bicrystal SrTiO3 substrate was investigated for application to magnetic contaminant detection. By covering a wide superconducting weak link and/or a slit of the YBa2Cu3O7-x SQUID with HTS thin films in flip-chip geometry, characteristics such as effective area and 1/f noise profile of the SQUID were successfully improved. By installing the covered SQUID in a magnetic contaminant detection system, it was demonstrated that the system can detect a tungsten ball of 15μm in diameter with a signal to noise ratio of about 2.

Physics Procedia•Jan 1, 2012•0 citations

Novel Stable and Reliable Readout Electronics for HTS rf SQUID

Hans‐Joachim Krause, N. Wolters, Yi Zhang

Conventional readout electronics for radio-frequency SQUIDs exhibit long-term instabilities due to a temperature-dependent frequency drift of their voltage controlled oscillator. A novel electronics with a quartz-controlled synthesizer was developed to solve this problem. The frequency can be adjusted from 450 to 900 MHz with 2 ppm frequency stability, the amplitude range covers more than 60 dB. An adjustable phase shifter for demodulation is implemented to compensate for variable cable length. The total amplification is about 100 dB. The electronics with touchpanel and remote USB control is commercially available with up to three preamplifier units. Because thermal drift is eliminated, it is well suited for outdoor applications, e.g. in geophysics.

Physics Procedia•Jan 1, 2012•5 citations

Determination of the Parameters of High-T C RF SQUID from Its Small Signal Voltage-Frequency Characteristics

Ya. S. Greenberg

Journal of Low Temperature Physics•Feb 1, 1999•9 citations
Integrated high-temperature superconductor (HTS) radio-frequency (rf) superconducting quantum interference devices (SQUIDs) based on a bicrystal SrTiO3 substrate was investigated for application to magnetic contaminant detection. By covering a wide superconducting weak link and/or a slit of the YBa2Cu3O7-x SQUID with HTS thin films in flip-chip geometry, characteristics such as effective area and 1/f noise profile of the SQUID were successfully improved. By installing the covered SQUID in a magnetic contaminant detection system, it was demonstrated that the system can detect a tungsten ball of 15μm in diameter with a signal to noise ratio of about 2.
Conventional readout electronics for radio-frequency SQUIDs exhibit long-term instabilities due to a temperature-dependent frequency drift of their voltage controlled oscillator. A novel electronics with a quartz-controlled synthesizer was developed to solve this problem. The frequency can be adjusted from 450 to 900 MHz with 2 ppm frequency stability, the amplitude range covers more than 60 dB. An adjustable phase shifter for demodulation is implemented to compensate for variable cable length. The total amplification is about 100 dB. The electronics with touchpanel and remote USB control is commercially available with up to three preamplifier units. Because thermal drift is eliminated, it is well suited for outdoor applications, e.g. in geophysics.