Angular dependence of the artificially induced anistropy in a-axis-oriented EuBa2Cu3O7/PrBa2Cu3O7 superconducting superlattices
M. Vélez, E. M. González, J. I. Martín, J. L. Vicent
DOI 10.1103/PhysRevB.54.101 · Physical Review B
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Abstract
a-axis-oriented EuBa2Cu3O7/PrBa2Cu3O7 (EBCO/PBCO) superlattices allow us to separate contributions to the anisotropy coming from the natural layered structure of EBCO from that introduced by the artificial layering with PBCO. The angular dependence of the critical current and resistivity in a magnetic field has been studied with different superlattice modulation lengths (strong coupling regime). The increase in the insulating PBCO layer thickness produces a crossover from an a-axis-oriented three-dimensional (3D) superconductor with a distribution of planar pinning centers to a 3D superconductor with an angular anisotropy behavior similar to single-phase c-axis-oriented films. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| EuBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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