Studies on La2-xPrxCayBa2Cu4+yOz (0.1 < x < 0.5) type mixed oxide superconductors

S Rayaprol; K R Mavani; D S Rana; C M Thaker; Manglesh Dixit; Shovit Bhattacharya; D G Kuberkar

doi:10.1016/S0038-1098(03)00658-6

Studies on La2-xPrxCayBa2Cu4+yOz (0.1 < x < 0.5) type mixed oxide superconductors

Superconductivity 2009-11-10 v1

Authors: S Rayaprol , K R Mavani , D S Rana , C M Thaker , Manglesh Dixit , Shovit Bhattacharya , D G Kuberkar

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Abstract

The La2-xPrxCayBa2Cu4+yOz (LaPrCaBCO) mixed oxides have been studied for their structural and superconducting properties using X-ray diffraction (XRD), d. c. resistivity, d. c. susceptibility and iodometric double titration. All the LaPrCaBCO samples for x = 0.1 - 0.5, exhibit tetragonal crystalline structure with P 4/mmm space group as determined by Rietveld analysis of the X-ray diffraction data. With increasing x, enhancement in Tc is observed, which is quite interesting for Pr substituted high Tc oxides. Maximum Tc ~ 58 K has been observed for x = 0.5(La-2125 stoichiometry). The results of structural studies and superconducting property measurements are presented in light of increase in Tc in LaPrCaBCO system with increasing Pr concentration.

Keywords

mixed oxide superconductors structural properties superconducting properties Pr substitution Tc enhancement

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@article{arxiv.cond-mat/0305579,
  title  = {Studies on La2-xPrxCayBa2Cu4+yOz (0.1 < x < 0.5) type mixed oxide superconductors},
  author = {S Rayaprol and K R Mavani and D S Rana and C M Thaker and Manglesh Dixit and Shovit Bhattacharya and D G Kuberkar},
  journal= {arXiv preprint arXiv:cond-mat/0305579},
  year   = {2009}
}

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6 pages including 5 figures and 1 table

Studies on La2-xPrxCayBa2Cu4+yOz (0.1 < x < 0.5) type mixed oxide superconductors

Abstract

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