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    • Keywords


      High Tc superconductor; Rietveld refinement; structure

    • Abstract


      Structural studies on Dy-substituted La-2125 type superconductors have been carried out by neutron diffraction experiments at room temperature using a monochromatic neutron beam of wavelength (λ) = 1.249 Å. A series of samples with La2-xDyxCa2xBa2Cu4+2xOz stoichiometric composition, forx = 0.1–0.5, have been studied for their structural properties. A tetragonal Y-123 unit cell was taken as the starting model for the Rietveld analysis. All the samples fit into the starting model, with no structural transition taking place with increasing dopant concentration. The results of Rietveld analysis and structural properties will be discussed in detail.

    • Author Affiliations


      S Rayaprol1 2 Rohini Parmar1 D G Kuberkar1 Keka R Chakraborty3 P S R Krishna3 M Ramanadham3

      1. Department of Physics, Saurashtra University, Rajkot - 360 005, India
      2. Tata Institute of Fundamental Research, DCMP & MS, Mumbai - 400 005, India
      3. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
    • Dates

  • Pramana – Journal of Physics | News

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