| EPSRC Reference: |
GR/M99880/01 |
| Title: |
NANOSCALE JOSEPHSON JUNCTIONS AND ASYMMETRY MODULATED SQUIDS |
| Principal Investigator: |
Blamire, Professor M |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Materials Science & Metallurgy |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
05 May 2000 |
Ends: |
04 January 2004 |
Value (£): |
171,083
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Superconductor-Normal metal-Superconductor (SNS) junctions are attractive for applications such as superconducting quantum interference devices (SQUIDS), rapid single flux quantum (RSFQ) logic circuits and rf devices because of their non-hysteretic characteristics and high critical current density. The aim of this programme is to build on the recent progress in the nanofabrication of SNS devices to develop junction technology for studies of the basic physics of coupled SNS devices and for device applications such as RSFQ. We will also fabricate both 1D and 2D lumped arrays of Josephson junctions; various design of these lumped junction arrays will be integrated in a suitable microwave environment and tested for coherent radiation, and ultimately applied in voltage standards and superconducting digital to analogue converters. We will also develop an innovative application of SNS devices in which the circulating current in a SQUIS loop can in principle be directly controlled by varying the asymmetry parameter which represents the difference in the critical current of the two junctions. Using hot electron injection to vary the asymmetry parameter in a SQUIS we aim to demonstrate a direct conversion from electron temperature difference to SQUID output voltage.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |