Superconductivity in (Ca, Na)2CaCu2O4Cl2 The new simplest double-layer cuprate with apical chlorine

Y. Zenitani, K. Inari, S. Sahoda, M. Uehara, J. Akimitsu, N. Kubota, M. Ayabe

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


A new superconductor, (Ca,Na)2CaCu2O4Cl2 (Tc = 49 K), with apical chlorines synthesized under high pressure has been found by resistivity and magnetization measurements. An X-ray powder diffraction study shows that the phase has a tetragonal structure with a = 3.85 A ̊ c = 21.45 A ̊, and it has the so called La2CaCu2O6 (2126) type structure with the apical site of pyramidal CuO5 being occupied by the chlorine atoms.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number1-2
Publication statusPublished - Jun 10 1995
Externally publishedYes

ASJC Scopus subject areas

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


Dive into the research topics of 'Superconductivity in (Ca, Na)<sub>2</sub>CaCu<sub>2</sub>O<sub>4</sub>Cl<sub>2</sub> The new simplest double-layer cuprate with apical chlorine'. Together they form a unique fingerprint.

Cite this