Synthesis and characterization of Ag5-xPb2O6-δ

Kouta Iwasaki, Hisanori Yamane, Shunichi Kubota, Junichi Takahashi, Yuzuru Miyazaki, Tsuyoshi Kajitani, Kensuke Nakajima, Tsutomu Yamashita, Masahiko Shimada

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Ag4.64Pb2O5.87, a silver and oxygen defects phase of Ag5Pb2O6, was prepared by solid state reaction of Ag2O and PbO at 773 K in O2 of 1.2 MPa. The crystal structure was analyzed by the Rietveld method using X-ray powder diffraction data. The c-axis length changed from 6.427 to 6.433 Å in 0.25<x<0.50 while the a-axis length was almost constant around 5.942 Å. Ag4.64Pb2O5.87 exhibited metallic temperature dependence of electrical resistivity in the temperature range of 10-400 K. The value of the resistivity was in the order of 10-4 Ωcm. The Seebeck coefficient ranged from -4 to 0 μV/K below 300 K, which revealed that the main conductive carrier is electron. Diamagnetism of the order of 10-7 emu/g was measured at 5-350 K.

Original languageEnglish
Pages (from-to)263-268
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Issue number2-3
Publication statusPublished - 2002 Nov 1


  • AgPbO
  • Defect structure
  • Electrical resistivity
  • Magnetic susceptibility
  • Seebeck coefficient
  • Silver lead oxide


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