← Back to search

Observation of combined Josephson and charging effects in small tunnel junction circuits

T. A. Fulton, P. L. Gammel, D. J. Bishop, L. N. Dunkleberger, G. J. Dolan

DOI 10.1103/PhysRevLett.63.1307 · Physical Review Letters

T1

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

Experiments on small superconducting tunnel junctions in a Giaever-Zeller-plus-SQUID geometry clearly show an I(V) feature due to Josephson supercurrent in a regime where single-electron charging effects are dominant. The I(V) data exhibit marked oscillations with gate voltage characteristic of single-electron charging. The Josephson feature shows both this effect and SQUID-related oscillations with applied magnetic field. The behavior can be understood through the usual model for charging effects in such circuits, extended to include two-electron transitions.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Al

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

—Pressure not reportedunknown

Similar papers