Josephson modulation of the critical current in YBa2Cu3O7−δ films
P. Bernstein, Y. Bougherira, J. F. Hamet, Y. Thimont, L. Méchin
DOI 10.1103/PhysRevB.78.054517 · 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
Assuming that the boundary planes in YBa2Cu3O7−δ can show a Josephson behavior, we establish the conditions required in epitaxial thin films to observe the modulation of the critical current by an applied magnetic field, as well as the possible forms of the modulated current. We report measurements carried out on two YBa2Cu3O7−δ films in the near vicinity of the critical temperature that show a partial modulation of their critical current. The comparison of the measured critical current changes to those predicted by the calculations shows that the experimental results are consistent with the Josephson modulation of the current carried by associations of weak links located in the boundary planes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Observation of mesoscopic conductance fluctuations in YBa2Cu3O7−δ grain boundary Josephson junctions
similarity 0.97A. Tagliacozzo et al.
Source status unknown — claims are unverified
Crossover effects for critical currents within Landau-Ginzburg phenomenology incorporating Josephson weak links in superconducting thin films of YBaCu2O7−δ
similarity 0.96J. A. Tuszyński et al.
Source status unknown — claims are unverified
Frequency analysis of the dielectric constant of YBa2Cu3O7 Josephson junctions fabricated on bicrystalline substrates
similarity 0.96M. A. Navacerrada et al.
Source status unknown — claims are unverified
Highly anisotropic supercurrent transport in YBa2Cu3O7−δ bicrystal Josephson junctions
similarity 0.95Z. G. Ivanov et al.
Source status unknown — claims are unverified
Systematic study of the growth-temperature dependence of structural disorder and superconductivity in YBa2Cu3O7−δ thin films
similarity 0.95Jinhua Ye & Keikichi Nakamura
Source status unknown — claims are unverified
Angular dependence of the critical current in layered superconductors
similarity 0.95V. L. Pokrovsky et al.
Source status unknown — claims are unverified