Effect of Fe on the superconductivity of the Ba-Y-Cu oxide system
B. R. Zhao, Y. H. Shi, Y. Y. Zhao, Lin Li
DOI 10.1103/PhysRevB.38.2486 · 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
We have substituted copper with iron in high-Tc Ba2YCu3O7−δ and formed Ba2YCu3(1−x)Fe3xO7−δ. It is found that Tc decreases with an increase of the Fe concentration, and the superconductivity is destroyed at x=0.15. X-ray diffraction analysis shows that the material has an orthorhombic perovskite structure with larger lattice parameters and smaller Δ(a−b) than Ba2YCu3O7−δ. Magnetic measurements show that the doped samples possess considerable paramagnetism. The effect of Fe on the superconductivity of Ba2YCu3O7−δ is discussed in detail.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba2YCu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | zero_resistance |
| Ba2YCu2.7Fe0.3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 22 | Pressure not reported | zero_resistance |
| Ba2YCu3(1-x)Fe3xO7-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
High-temperature superconductivity in tetragonal perovskite structures: Is oxygen-vacancy order important?
similarity 0.96Gang Xiao et al.
Source status unknown — claims are unverified
Superconductivity in bulk and thin films of La1.85Sr0.15CuO4−δ and Ba2YCu3O7−δ
similarity 0.95K. Moorjani et al.
Source status unknown — claims are unverified
Crystal structure of the high-Tc superconductor Ba2YCu3O7+x using neutron diffraction
similarity 0.95Q. W. Yan et al.
Source status unknown — claims are unverified
Magnetotransport study of intra- and intergrain transitions in the magnetic superconductors RuSr2GdCu2O8 and RuSr2(Gd1.5Ce0.5)Cu2O10
similarity 0.95S. García et al.
Source status unknown — claims are unverified
Effect of Mn on the superconductivity of YBa2Cu3O7−δ
similarity 0.95R. F. Jardim et al.
Source status unknown — claims are unverified
Effect of substitution of Bi, Ga, and Fe on the structure and superconducting transition of Y1Ba2Cu3O6.5+δ
similarity 0.95J. Jung et al.
Source status unknown — claims are unverified