Neutron Diffraction Studies on La2-xDyxCa2xBa2Cu4+2xOz Superconductors

S. Rayaprol; Rohini Parmar; D. G. Kuberkar; Keka R. Chakraborty; P. S. R. Krishna; M. Ramanadham

doi:10.1007/BF02704975

Neutron Diffraction Studies on La2-xDyxCa2xBa2Cu4+2xOz Superconductors

Superconductivity 2009-11-10 v1

Authors: S. Rayaprol , Rohini Parmar , D. G. Kuberkar , Keka R. Chakraborty , P. S. R. Krishna , M. Ramanadham

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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 lambda = 1.249 Angstroms. A series of samples with La2-xDyxCa2xBa2Cu4+2xOz stoichiometric composition, for x = 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, exhibiting no structural transition taking place with increasing dopant concentration. The results of Rietveld analysis and structural properties are discussed in detail.

Keywords

phase transitions high-temperature superconductivity

Cite

@article{arxiv.cond-mat/0408333,
  title  = {Neutron Diffraction Studies on La2-xDyxCa2xBa2Cu4+2xOz Superconductors},
  author = {S. Rayaprol and Rohini Parmar and D. G. Kuberkar and Keka R. Chakraborty and P. S. R. Krishna and M. Ramanadham},
  journal= {arXiv preprint arXiv:cond-mat/0408333},
  year   = {2009}
}

Neutron Diffraction Studies on La2-xDyxCa2xBa2Cu4+2xOz Superconductors

Abstract

Keywords

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