Excess voltage and resistance in superconductor-semiconductor junctions
A. W. Kleinsasser, A. Kastalsky
DOI 10.1103/PhysRevB.47.8361 · Physical Review B
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 report the observation of excess voltage in Nb-InxGa1−xAs superconductor-semiconductor contacts (at large biases, the voltage in the superconducting state significantly exceeds that in the normal state). In addition, we describe an unusual temperature-dependent large-bias dynamic resistance, including a sudden increase as temperature decreases through the superconducting transition, a steady decrease with decreasing temperature below Tc, and a second smaller increase as temperature decreases through the onset temperature for the recently reported proximity-effect-induced pair current [A. Kastalsky et al., Phys. Rev. Lett. 67, 3026 (1991)]. These phenomena are discussed in terms of the rapidly evolving theory of superconductor-normal contacts with finite interface transmittance.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.2 | Pressure not reported | onset |
Similar papers
Zero to π transition in superconductor-ferromagnet-superconductor junctions
similarity 0.95J. W. A. Robinson et al.
Source status unknown — claims are unverified
Thickness Dependence of the Josephson Ground States of Superconductor-Ferromagnet-Superconductor Junctions
similarity 0.95V. A. Oboznov et al.
Source status unknown — claims are unverified
Nature of Phase Transitions of Superconducting Wire Networks in a Magnetic Field
similarity 0.95X. S. Ling et al.
Source status unknown — claims are unverified
Magnetic coupling in superconducting spin valves with strong ferromagnets
similarity 0.94M. Flokstra et al.
Source status unknown — claims are unverified
Observation of pair currents in superconductor-semiconductor contacts
similarity 0.94A. Kastalsky et al.
Source status unknown — claims are unverified
Stress-induced structural changes in superconducting Nb thin films
similarity 0.94Jaeyel Lee et al.
Source status unknown — claims are unverified