| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1818306 | Physica C: Superconductivity and its Applications | 2012 | 10 Pages |
Superconducting samples of the type GdBa2Cu3−xRuxO7−δ with 0.000 ⩽ x ⩽ 0.300 were prepared by the conventional solid-state reaction technique. The phase formation percentage, lattice parameters, orthorhombic distortion and oxygen-content were calculated using X-ray powder diffraction (XRD) data. The real elemental-content of the prepared samples was estimated from particle induced X-ray emission (PIXE). In addition, the oxygen-content was determined using elastic Rutherford backscattering spectroscopy (RBS) technique at 3 MeV proton beam and Rietveld XRD analysis. Moreover, the prepared samples were investigated using electron paramagnetic resonance (EPR) measurements. The number of spins N participating in EPR resonance and the paramagnetic susceptibility χ were calculated as a function of both Ru-content and temperature. In addition, the activation energy Ea, Curie constant C, Curie temperature θ, the effective magnetic moment μ and the electronic specific heat coefficient γ were estimated as a function of Ru-content.
► Low Ru substitution in Gd-123 phase improved the physical properties of Gd-123 phase. ► PIXI technique is more accurate for determining the Ru-content than that EDX technique. ► The oxygen content increases as Ru-content increases. ► Number of spins and activation energy increased as Ru-content increases. ► The EPR line symmetric did not depend on both Ru-content and temperature.
