Preparation and phase research of the 110 K high-Tc superconductor Bi2Sr2Ca2Cu3Oy doped with Sb and Pb

Qinlun Xu, Tingzhu Cheng, Xiao Guang Li, Li Yang, Chengao Fan, Haiqian Wang, Zhiqiang Mao, Dingkun Peng, Zhaojia Chen, Yuheng Zhang

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9 Scopus citations

Abstract

A nearly pure 110 K phase of the ceramic superconductor Bi1.92Pb0.38,0.3SbxSi2Ca2Cu3.2O10-δ was obtained by codecomposition of coprecipatated oxalate technique. These samples with Sb=0.1, Pb=0.38 had zero resistance temperature at 102 K. For those samples with Sb=0.3, Pb=0.3, Tco was equal to 90 K. Their magnetic susceptibility all dropped sharply at 110 K and it does not change at 80 K. X-ray diffraction revealed that there was no 80 K or 20 K phase but the 110 K and an unknown phase. This unknown phase itself is not superconducting above 77 K. The average composition of the unknown phase is given as Bi32Pb3Sb7Sr29Cu7Ox.

Original languageEnglish (US)
Pages (from-to)489-492
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume168
Issue number5-6
DOIs
StatePublished - Jul 1 1990

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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