Published July 1, 1992 | Version v1
Journal article

Superconductivity at 55 K enhanced by silver-doping in Pb0.9AgxSr2La2Cu3.1Oy

  • 1. Dept. of Applied Chemistry, Univ. of Science and Tech. of China, Hefei, Anhui (China)
  • 2. Structure Research Lab., Univ. of Science and Tech. of China, Hefei, Anhui (China)

Description

A sample of Pb0.9AgxSr2La2Cu3.1Oy has been synthesized to be superconducting at 55 K (zero resistivity) by a sol-gel process. The phase responsible for superconductivity has an orthorhombic symmetry with a=0.5402 nm, b=0.5367 nm, c=1.570 nm, measured by X-ray powder diffraction method. The crystal structure is an analogue to that of (Pb, Cu)-3212 phase. X-ray photo-electron spectroscopy indicates that silver has partly been in Ag1+ state, which probably enhanced the superconductivity. (orig.)

Additional details

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
197
Journal Issue
1/2
Series
Phys., C Supercond.
Journal Page Range
42-46
ISSN
0921-4534
CODEN
PHYCE