A new family of superconductors containing carbonate group

J. Akimitsu, H. Nakata, M. Uehara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Three new oxycarbonate superconductors recently obtained in our laboratory are described. (1) Sr2CuO2(CO3)1-x(BO3)x (Tc = 35 K) was synthesized under ambient pressure, providing a new method for carrier doping on the layered copper oxycarbonate system. (2) Can(Ca, Sr)2Cun+1(CO3)Oy (n = 1, 2, 3) was synthesized under high pressure. Superconductivity was achieved by substituting (BO3)3- for a part of (CO3)2-. (3) A new Hg system HgBa2Sr2Cu2(CO3)O6+δwas synthesized. Tc obtained from the magnetic susceptibility is about 66 K.

Original languageEnglish
Pages (from-to)19-22
Number of pages4
JournalJournal of Superconductivity
Issue number1
Publication statusPublished - Feb 1 1994
Externally publishedYes


  • Ca n(Ca, Sr)Cu (Co)O (n = 1,2,3)
  • HgBaSrCu(CO)O
  • SrCuO(CO)(BO)
  • copper oxycarbonate, copper oxyborate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)


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