Determination of space group and refinement of structure parameters for la2cuo4-δcrystals

Kazuyoshi Yamada, Eisuke Kudo, Yasuo Endoh, Kenji Tsuda, Michiyoshi Tanaka, Koichi Kokusho, Hajime Asano, Fujio Izumi, Migaku Oda, Yoshikazu Hidaka, Minoru Suzuki, Toshiaki Murakami

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


The space group in the orthorhombic phase of La2CuO4-δwas confirmed to be Cmca for both as grown and deoxygenated crystals by using conventional and convergent beam electron diffraction together with high resolution neutron powder diffraction methods. The Rietveld refinements of neutron powder diffraction data determined the structural parameters. Slight differences in lattice constants, positional parameters and occupation factor for oxygen atoms were found between the two crystals.

Original languageEnglish
Pages (from-to)1132-1137
Number of pages6
JournalJapanese Journal of Applied Physics
Issue number7R
Publication statusPublished - 1988 Jul


  • Convergent electron diffraction
  • High Tc superconductor
  • La2Cu04_δ1
  • Neutron powder diffraction
  • Structure analysis


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