Synthesis of bulk YBa2Cu4O8 and Y1-xCaxBa2Cu4O8 at 1 atm oxygen pressure

X. G. Zheng, Hisao Kuriyaki, K. Hirakawa

Research output: Contribution to journalArticlepeer-review


A series of (YCa)Ba2Cu4O8 superconducting compounds has been synthesized at ambient oxygen pressure. A zero-resistance Tc of 76 K is obtained with the as-grown YBa2Cu4O8. In Y0.925Ca0.075Ba2Cu4O8, Tc is enhanced to 83 K, producing a transport critical current density of 190 A/cm2 at 77 K.

Original languageEnglish
Pages (from-to)435-436
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 1
Publication statusPublished - Jan 1 1994

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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