Longitudinal Proximity Effects in Superconducting Transition-Edge Sensors
John E. Sadleir, Stephen J. Smith, Simon R. Bandler, James A. Chervenak, John R. Clem
DOI 10.1103/PhysRevLett.104.047003 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
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 Tc of the TES is current dependent and at fixed current scales as 1/L2. 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 μm, 1450 times the mean-free path.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Mo Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.9 | Pressure not reported | unknown |
| Mo/Au Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.1709 | Pressure not reported | zero_resistance |
| Mo/Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | Pressure not reported | unknown |
Similar papers
Longitudinal Proximity Effects in Superconducting Transition-Edge Sensors
similarity 0.99John E. Sadleir et al. · 2009 · arXiv:0910.2451
Source status unknown — claims are unverified
Proximity effects and nonequilibrium superconductivity in transition-edge sensors
similarity 0.96John E. Sadleir et al.
Source status unknown — claims are unverified
Anomalous magnetoresistance near the superconductor-insulator transition in ultrathin films of a−MoxSi1−x
similarity 0.93S. Okuma et al.
Source status unknown — claims are unverified
Strong electron-phonon coupling in the intermetallic superconductor Mo8Ga41
similarity 0.91Valeriy Yu. Verchenko et al.
Source status unknown — claims are unverified
Influence of edge barriers on vortex dynamics in thin weak-pinning superconducting strips
similarity 0.91B. L. T. Plourde et al.
Source status unknown — claims are unverified
Mitigation of the Magnetic Field Susceptibility of Transition-Edge Sensors Using a Superconducting Groundplane
similarity 0.91M. de Wit et al.
Source status unknown — claims are unverified