New superconductor with apical bromine (Ca, A)2CuO2Br2: A=Na, K

Yuji Zenitani, Shuji Sahoda, Jun Akimitsu, Nobuhiko Kubota, Muneo Ayabe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We report a new superconductor, (Ca,A)2CuO2+yBr2-y,:A=(Na,K) (Tc=24 K) with apical bromines synthesized under high pressure . X-ray powder diffraction shows that the superconducting phase has a tetragonal structure with a=3.858 Å, c=17.257 Å. This structure is so called La2CuO4 (214) type with an apical site of octahedral CuO6 being almost occupied by the bromine atoms.

Original languageEnglish
Pages (from-to)1087-1089
Number of pages3
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Issue number9
Publication statusPublished - Sept 1996
Externally publishedYes


  • (Ca,A)CuOBr:A=(Na,K)
  • Apical halogen
  • High pressure synthesis
  • High-T superconductor

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry


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