Superconductivity in ru-based cuprate Ru(Sr1.5Ca 0.5)PbCu2O8 prepared by sol-gel route

L. M. Yeoh, Musa Ahmad, Roslan Abd. Shukor

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Pb containing ruthenium-based superconducting cuprates Ru(Sr 1.5Ca0.5)PbCu2O8 (Ru-1212 type) have been successfully synthesized through the sol-gel route. The optimum annealing temperature for the ruthenium-based cuprate superconductor was found to be 890°C. The crystal structure determined by X-ray powder diffraction method showed a single Ru-1212 type phase with tetragonal symmetry with lattice parameters a = b = 3.920 Å, and c = 11.76 Å. The Ru(Sr 1.5Ca0.5)PbCu2O8 material showed onset temperature, Tc-onset at 35 K and zero resistant temperature, Tc-zero at 20 K. Pb together with the partial substitution of Sr with Ca lowered the formation temperature of the Ru-1212 type phase.

Original languageEnglish
Pages (from-to)1441-1446
Number of pages6
JournalModern Physics Letters B
Volume22
Issue number14
DOIs
Publication statusPublished - 10 Jun 2008

Fingerprint

Sol-gel
Superconductivity
cuprates
Sol-gels
superconductivity
routes
gels
Ruthenium
ruthenium
Temperature
temperature
Crystal Structure
Zero
Superconductor
Annealing
Powder
X ray powder diffraction
Lattice constants
Substitution
Diffraction

Keywords

  • Electrical transport
  • High-T superconductor
  • Scanning electron microscopy
  • Sol-gel processes
  • X-ray diffraction

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

Superconductivity in ru-based cuprate Ru(Sr1.5Ca 0.5)PbCu2O8 prepared by sol-gel route. / Yeoh, L. M.; Ahmad, Musa; Abd. Shukor, Roslan.

In: Modern Physics Letters B, Vol. 22, No. 14, 10.06.2008, p. 1441-1446.

Research output: Contribution to journalArticle

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