d-Wave–Induced Josephson Current Counterflow in YBa2Cu3O7/Nb Zigzag Junctions
H. J. H. Smilde, Ariando, D. H. A. Blank, G. J. Gerritsma, H. Hilgenkamp, H. Rogalla
DOI 10.1103/PhysRevLett.88.057004 · 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
Well-defined zigzag-shaped ramp-type Josephson junctions between YBa2Cu3O7 and Nb have been studied. The magnetic field dependencies of the critical currents provide evidence for d-wave–induced alternations in the direction of the Josephson current between neighboring sides of the zigzag structure. The arrays present controllable model systems to study the influences of π facets in high-angle high- Tc grain boundaries. From the characteristics, we estimate a possible imaginary s-wave admixture to the order parameter of the YBa2Cu3O7 to be below 1%.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Frequency analysis of the dielectric constant of YBa2Cu3O7 Josephson junctions fabricated on bicrystalline substrates
similarity 0.95M. A. Navacerrada et al.
Source status unknown — claims are unverified
Josephson tunneling of anisotropic high-Tc d-wave junctions with tilted ab-plane YBa2Cu3O7−y electrodes
similarity 0.94H. Arie et al.
Source status unknown — claims are unverified
Intrinsic d-Wave Effects in YBa2Cu3O7−δ Grain Boundary Josephson Junctions
similarity 0.94F. Lombardi et al.
Source status unknown — claims are unverified
Controlling Josephson dynamics by strong microwave fields
similarity 0.93B. Chesca et al.
Source status unknown — claims are unverified
Scaling behavior in electrical transport across grain boundaries in YBa2Cu3O7−δ superconductors
similarity 0.92R. Gross et al.
Source status unknown — claims are unverified
Vortex correlations in the superconducting transition of YBa2(Cu1−xAlx)3O7−δ films in high magnetic fields
similarity 0.92Dimitrios G. Xenikos et al.
Source status unknown — claims are unverified