Study of superconducting properties of oxygen deficient GdBa2Cu3O7-y by a heating cycle technique

H. E. Horng*, J. C. Jao, M. H. Hsieh, H. C. Yang, B. C. Yao, C. H. Chen


研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)


We have studied oxygen deficient GdBa2Cu3O7-y samples by heating cycle technique and correlated the resistivity data with the oxygen deficiency derived from TGA. An orthorthombic to tetragonal phase transformation was found at about 720 K and it is consistent with that derived from the X-ray data. The resistivity is hysteretic cooling and shows semiconducting behavior for y≥0.7. Localization was found for samples with semiconductive properties. The electron-phonon coupling constant derived from the electric and magnetic measurements is λtr=0.31 which suggests a weak electron-phonon coupling in high-Tc oxides.

頁(從 - 到)480-484
期刊Physica C: Superconductivity and its applications
出版狀態已發佈 - 1989 五月 1

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程


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