Observation of flux flow in superconducting YBa2Cu3O7−δ films
H. A. Blackstead, D. B. Pulling, J. S. Horwitz, D. B. Chrisey
DOI 10.1103/PhysRevB.49.15335 · 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
Measurements of field-induced changes of the a-b plane surface resistance of high-quality (>1010 A/m2 at 77 K and B=0) YBa2Cu3O7−δ films at 12.92 GHz reveal flux-flow resistivity at temperatures several degrees below the superconducting onset temperature. Flux-flow resistivity is identified by its temperature dependence and dependence on the Lorentz force. The results are compared to the surface resistance theory of Coffey and Clem, which includes a model for pinning.
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. | 89.4 | Pressure not reported | unknown |
Similar papers
Analytical approach to the thermal instability of superconducting films under high current densities
similarity 0.96Jesús Maza et al.
Source status unknown — claims are unverified
Heteroepitaxial growth of strained multilayer superconducting thin films of Nd1.83Ce0.17CuOx/YBa2Cu3O7−δ
similarity 0.95A. Gupta et al.
Source status unknown — claims are unverified
Direct observation of the current distribution in thin superconducting strips using magneto-optic imaging
similarity 0.95T. H. Johansen et al.
Source status unknown — claims are unverified
Comparative study of superconducting energy gaps in oriented films and polycrystalline bulk samples of Y-Ba-Cu-O
similarity 0.95R. T. Collins et al.
Source status unknown — claims are unverified
Unstable Flux Flow due to Heated Electrons in Superconducting Films
similarity 0.95Milind N. Kunchur
Source status unknown — claims are unverified
Correlations between the Hall coefficient and the superconducting transport properties of oxygen-deficient YBa2Cu3O7−δ epitaxial thin films
similarity 0.95E. C. Jones et al.
Source status unknown — claims are unverified