Selection of the best proper DC-SQUIDs in a multi-SQUID configuration
IEEE Transactions on Applied Superconductivity
680 - 682
MetadataShow full item record
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/27103
We have carried out experimental investigation of multi-DC-SQUID magnetometer configuration fabricated on YBa2Cu30 7-δ thin films onto 24 degree SrTiO3 bicrystal substrates by directly coupling the pick-up loop to DC-SQUIDs. The layout of the magnetometer pick-up loop was chosen as a square washer configuration by maximizing loop effective area and minimizing loop inductance. We have used De-Magnetron Sputtering technique for deposition of the films and chemical etching process for patterning the Josephson junctions having 4 μm widths. The use of multi-SQUID configuration is related to the selection of the best proper junctions for SQUID to improve the chip sensitivity with selectivity option of choosing the squid junctions rather than multichannel operation. Selection of the best junctions compared to each other depending on the junction critical currents and noise levels caused by the fabrication process and placements of the junctions on the grain boundary enable having an increased output signal of the DC-SQUID. © 2007 IEEE.
- Conference Paper 2294
Showing items related by title, author, creator and subject.
Effect of rf pumping frequency and rf input power on the flux to voltage transfer function of rf-SQUIDs Akram, R.; Eker, T.; Bozbey, A.; Fardmanesh, M.; Schubert J.; Banzet, M. (2007)We present the results on the correlation between the flux to voltage transfer function, Vspp, of the rf-SQUID and the rf-bias frequency as well as rf-bias power. Measurements were performed for different SQUID gradiometer ...
1/f noise characteristics of SEJ Y-Ba-Cu-O rf-SQUIDs on LaAlO 3 substrate and the step structure, film, and temperature dependence Fardmanesh, M.; Schubert J.; Akram, R.; Bick, M.; Zhang, Y.; Banzet, M.; Zander W.; Krause H.-J.; Burkhart H.; Schilling, M. (2001)Step edge junction (SEJ) rf-SQUID magnetometers and gradiometers were fabricated using PLD Y-Ba-Cu-O films on LaAlO 3(100) and SrTiO 3(100) substrates. Effects of different step structure and the film properties on the ...
Noise, junction characteristics, and magnetic field dependencies of bicrystal grain boundary junction Rf-SQUIDs Fardmanesh, M.; Schubert J.; Akram, R.; Bick, M.; Banzet, M.; Zander W.; Zhang, Y.; Krause H.-J. (2003)Bicrystal grain boundary (GB) Josephson junctions and rf-SQUID's were made of 200 nm thick PLD YBCO films on bi-crystal SrTiO3 substrates. The junction characteristics were studied to investigate optimal parameters in the ...