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B. Batlogg, “Cuprate Superconductors: Science beyond high Tc,” Solid State Commune, Vol. 107, No. 11, 1998, pp. 639-647. doi.org/10.1016/S0038-1098(98)00296-8

has been cited by the following article:

• TITLE: Structural and Electrical Properties of Niobium Doped Y0.6Gd0.4Ba2-xNbxCu3O7-y Superconductors

  AUTHORS: Mucahit Yilmaz, Oguz Dogan

  KEYWORDS: Y0.6Gd0.4Ba2-xNbxCu3O7-yCuprates; Gd And Nb Co-Doping; Structural And Superconducting Properties

  JOURNAL NAME: Materials Sciences and Applications, Vol.2 No.8, August 9, 2011

  ABSTRACT: Polycrystalline samples of Y0.6Gd0.4Ba2-xNbxCu3O7-y(YGBNCO) with different Nb contents (x = 0.05, 0.10, 0.15, 0.20, and 0.25) were prepared using the usual solid state reaction technique. The structure for all samples was characterized by XRD and SEM. The electrical properties were measured by the FPP method in the temperature range from 70 to 130 K. The lattice constant of b remains almost unchanged and a and c increases with the increase of Nb content with x ≤ 0.10. The zero resistance transition temperature and Jc decrease with increasing Nb content. But superconductivity did not suppress. As the Nb content in the samples increases, it gives a diffused phase indicating a niobium perovskite phase and it is a small amount of unidentified phase.