Long coherence lengths in c-axis oriented Y0.6Pr0.4Ba2Cu3O7 thin films determined by the resistive transitions under applied magnetic fields
| Autor: | Uri Dai, Guy Deutscher, D. Racah |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Superconductivity
Resistive touchscreen High-temperature superconductivity Materials science Condensed matter physics Van Hove singularity Energy Engineering and Power Technology Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Coherence length Magnetic field law Condensed Matter::Superconductivity Electrical and Electronic Engineering Thin film Coherence (physics) |
| Zdroj: | Physica C: Superconductivity. 209:229-232 |
| ISSN: | 0921-4534 |
| Popis: | We report the measurement and analysis of the resistive transitions under applied magnetic fields for c axis oriented thin films of Y0.6Pr0.4Ba2Cu3O7 (PYBCO). We estimate the in-plane and out-of-plane coherence lengths to be much larger YBCO. Our data could not be fitted in a satisfactory way to the ‘giant flux-creep’ model. We also discuss the change in the superconducting properties of this system as compared to YBCO in terms of the double pair-breaking theory (both for magnetic impurities and magnetic field) and find it to be insufficient to explain the observed data. We discuss the large coherence lengths ξab ξc in PYBCO in terms of the van-Hove scenario for HTC. |
| Databáze: | OpenAIRE |
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