Abstract
In order to suppress the flux entry into YBa2Cu3O7-x (YBCO) thin film of dc-SQUIDs, we have designed and fabricated SQUID magnetometers with a mesh structure having slots and holes. The magnetometer also included flux dams within the pickup loop to suppress the flux entry driven by shielding current. In the field cooling, we observed a flux shift caused by flux trapping in the V-Φ characteristics above 10 µT, which agreed with the calculated value from the width of the YBCO film near the flux dam. When the applied field changed above 0.14 µT, the flux dams opened and the flux entered into the pickup loop. The critical current of the flux dams decreased with the applied field in a Fraunhofer-like pattern.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
