Dimensional Crossover for Intrinsic dc Josephson Effect in Bi2Sr2CaCu2O8 2212 Single Crystal Whiskers

Yu. I. Latyshev; J. E. Nevelskaya; P. Monceau

doi:10.1103/PhysRevLett.77.932

← Back to search

Dimensional Crossover for Intrinsic dc Josephson Effect in Bi2Sr2CaCu2O8 2212 Single Crystal Whiskers

Yu. I. Latyshev, J. E. Nevelskaya, P. Monceau

DOI 10.1103/PhysRevLett.77.932 · 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

The variations of the critical current Ic across the layers as a function of the parallel magnetic field H have been studied on small area stacked junctions fabricated from perfect single crystal Bi2Sr2CaCu2O8 whiskers. Intrinsic dc Josephson effect has been clearly demonstrated on structures with in-plane size L less than 20μm. With L increases, a dimensional crossover to monotonic size independent behavior of Ic(H) has been observed. Ic(H) decrease in this region is proportional to H in accordance with the Fistul-Giuliani theory.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown