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Huang, H., Jang, H., Fujita, M., Nishizaki, T., Lin, Y., Wang, J., Ying, J., Smith, J.S., Kenney Benson, C., Shen, G., Mao, W.L., Kao, C.C., Liu, Y.J. and Lee, J.S. (2018) Modification of Structural Disorder by Hydrostatic Pressure in the Superconducting Cuprate YBa2Cu3O6.73. Physical Review B, 97, Article ID: 174508.
https://doi.org/10.1103/PhysRevB.97.174508

has been cited by the following article:

• TITLE: Effect of Substituting a Fraction of Cu by La on the Transport Properties of YBa2(Cu1−xLax)3O7−δ Superconductor (0 ≤ x ≤ 0.06)

  AUTHORS: A. N. Fouda

  KEYWORDS: Superconductors, X-Ray Diffraction, Transport Properties, Microstructure

  JOURNAL NAME: Materials Sciences and Applications, Vol.9 No.10, September 18, 2018

  ABSTRACT: The effect of La doping on the transport properties and superconducting characterizations of YBa2Cu3O7-δ was investigated. High quality YBa2(Cu1-xLax)3O7-δ superconductor was synthesized with La content of x = 0.00, 0.02, 0.04 and 0.06. The structure and surface morphology were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM) measurements. The best superconducting properties can be obtained for substitution of Cu by La concentration within a distinct range (x = 0.02, 0.04). The highest superconducting transition temperature Tc (≈90 K), sharpest transition to superconductivity (ΔT = 5 K) and lowest electrical resistivity (ρ = 9.2 μΩ·cm) correspond to the composition with x = 0.02. Depression and degradation of the superconducting state as (x) increases to 0.06 were observed. Excess dopant of La (x = 0.06) results in a strong decoupling of chains and planes whereas optimal La doping (x = 0.02, x = 0.04) accumulates around the grain, beside the effect of hole filling within this range can adopt an alternate route to extensive oxygen anneal.