Display options
Cite
Sadleir JE, Smith SJ, Bandler SR, et al. Longitudinal proximity effects in superconducting transition-edge sensors. Phys Rev Lett. 2010;104(4):047003doi: 10.1103/PhysRevLett.104.047003.
Sadleir, J. E., Smith, S. J., Bandler, S. R., Chervenak, J. A., & Clem, J. R. (2010). Longitudinal proximity effects in superconducting transition-edge sensors. Physical review letters, 104(4), 047003. https://doi.org/10.1103/PhysRevLett.104.047003
Sadleir, John E, et al. "Longitudinal proximity effects in superconducting transition-edge sensors." Physical review letters vol. 104,4 (2010): 047003. doi: https://doi.org/10.1103/PhysRevLett.104.047003
Sadleir JE, Smith SJ, Bandler SR, Chervenak JA, Clem JR. Longitudinal proximity effects in superconducting transition-edge sensors. Phys Rev Lett. 2010 Jan 29;104(4):047003. doi: 10.1103/PhysRevLett.104.047003. Epub 2010 Jan 28. PMID: 20366733.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2010 Jan 29;104(4):047003. doi: 10.1103/PhysRevLett.104.047003. Epub 2010 Jan 28.

Longitudinal proximity effects in superconducting transition-edge sensors.

Physical review letters

John E Sadleir, Stephen J Smith, Simon R Bandler, James A Chervenak, John R Clem

Affiliations

  1. Department of Physics, University of Illinois, 1110 West Green Street, Urbana, Illinois 61801-3080, USA. [email protected]

PMID: 20366733 DOI: 10.1103/PhysRevLett.104.047003

Abstract

We have found experimentally that the critical current of a square thin-film superconducting transition-edge sensor (TES) depends exponentially upon the side length L and the square root of the temperature T, a behavior that has a natural theoretical explanation in terms of longitudinal proximity effects if the TES is regarded as a weak link between superconducting leads. As a consequence, the effective transition temperature T{c} of the TES is current dependent and at fixed current scales as 1/L{2}. We have also found that the critical current can show clear Fraunhofer-like oscillations in an applied magnetic field, similar to those found in Josephson junctions. We have observed the longitudinal proximity effect in these devices over extraordinarily long lengths up to 290 microm, 1450 times the mean-free path.

Publication Types