The fluorine-doped n-type superconductors Ndl.s5Ce0.15CuO4\_x\_yFy (nominal composition) are synthesized with CuF z as one of the reactants. Especially, it is found that the superconductivity of Nd1.85Ce0.15CuO4\_~ is improved with Tc °n= 27 K, T ° = 15.5 K when CuF 2 is taken as a source of atmosph
About the superconducting gap in the n-type high-Tc superconductor (Nd1.85Ce0.15CuO4−δ)
✍ Scribed by L. Degiorgi; S. Rusiecki; P. Wachter
- Book ID
- 108024241
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 464 KB
- Volume
- 161
- Category
- Article
- ISSN
- 0921-4534
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Superconducting transition onset around 30-31 K was reported for the repeated-vacuum/Ar-annealed and liquid-nitrogen-quenched sample of the high T c electron superconductor Nd1.85CeO.15Cu04\_0 (0 = 0.07(2)). Vortex lattice melting near T c was observed for this oxygen-reduced superconductor. Low fi
We observe a sign reversal of the Hall resistivity in the mixed state of the n-type superconductor Ndl.s5Ceo.15CuO4. ~. Such all anomaly, which has also been observed earlier in the p-type oxide superconductors, has been widely attributed to thermoelectric effects, pinning effects, or else to compli