Magnetic and transport properties of PrBa2Cu4O8-δ prepared at 1 atm oxygen pressure

H. C. Ku*, Y. B. You, S. R. Sheen, Y. M. Wan, T. I. Hsu, Y. Y. Hsu

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

5 引文 斯高帕斯(Scopus)

摘要

Measurements of physical properties were performed on the PrBa2Cu4O8-δ sample prepared by the sol-gel method and sintered in I atm oxygen pressure. Instead of exhibiting superconductivity as for R - Y or Gd in the RBa2Cu4O8-δ compound, This compound is unstable, insulating but metallic-like at low temperatures. No superconductivity was observed down to 2 K. Since PrBa2Cu4O8-δ can be re-written as Cu2Ba2PrCu2O8-δ which is a compound of two CuO2-layers and two CuO-chains, the possibility of anomalous Pr antiferromagnetic ordering around 18 K observed from preliminary magnetic data and the effect of oxygen stoichiometry parameter δ on the metal-insulator transition are explored.

原文英語
頁(從 - 到)1463-1468
頁數6
期刊Journal of Low Temperature Physics
105
發行號5-6
DOIs
出版狀態已發佈 - 1996
對外發佈

ASJC Scopus subject areas

  • 原子與分子物理與光學
  • 材料科學(全部)
  • 凝聚態物理學

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