nanoSQUID operation using kinetic rather than magnetic induction
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nanoSQUID operation.pdf
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952.07 KB
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74a53674bc48d358718a9b7a3947884a
Author(s)
McCaughan, Adam N.
Zhao, Qingyuan
Berggren, Karl K.
Date Issued
June 2016
Journal
Scientific Reports
Publisher
Springer Nature
Citation
McCaughan, Adam N., Qingyuan Zhao, and Karl K. Berggren. "nanoSQUID operation using kinetic rather than magnetic induction." Scienctific Reports 6, Article number: 28095 (2016).p.1-4.
Version
Final published version
Abstract
We report on a method of nanoSQUID modulation which uses kinetic inductance rather than magnetic inductance to manip-ulate the internal fluxoid state. We produced modulation using injected current rather than an applied magnetic field. Using this injected current, we were able to observe the triangle-wave shaped modulation of the device critical current which was periodic according to the London fluxoid quantization condition. The measurement results also confirmed that the fluxoid state inside a superconducting loop can be manipulated using primarily kinetic inductance. By using primarily kinetic inductance rather than magnetic inductance, the size of the coupling inductor was reduced by a factor of 10. As a result, this approach may provide a means to reduce the size of SQUID-based superconducting electronics. Additionally, this method provides a convenient way to perform kinetic inductance characterizations of superconducting thin films.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1038/srep28095
