The phase diagram of the new superconductor Sr2CuO2(CO3)1-x(BO3) x

H. Nakata, H. Okajima, T. Yokoo, A. Yamashita, J. Akimitsu, S. Katano

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A phase diagram for the boron-doped new superconductor Sr2CuO2(CO3)1-x(BO3) x has been systematically investigated. The parent compound Sr2CuO2(CO3) is an antiferromagnetic (AF) insulator with a Néel temperature of TN ∼ 285 K. TN of Sr2CuO2(CO3)1-x(BO3) x changes drastically with increasing boron content x. In the lightly doped AF state (0 ≤ x ≤ 0.04), the strong superexchange interaction within the CuO2-layers still yields a long-range AF ordering. The superconductivity is confined to the narrow compositional range 0.04 ≤ x ≤ 0.15 and its highest Tc is 32 K at x = 0.15.

Original languageEnglish
Pages (from-to)344-348
Number of pages5
JournalPhysica C: Superconductivity and its applications
Issue number1-4
Publication statusPublished - May 1996
Externally publishedYes

ASJC Scopus subject areas

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


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