Analysis of Crystal Structure of an Y-Ba-Cu Oxide

1 April 1987

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 26 (4A) , L394
https://doi.org/10.1143/jjap.26.l394

Abstract

Results of the analyses on crystal structure and chemical composition of dark-green crystals mainly found in an Y-Ba-Cu oxide specimen which shows high-T _c superconductivity are reported. Crystal structure is investigated by the electron diffraction method and is determined to be orthorhombic with lattice parameters a=1.22 nm, b=0.561 nm and c=0.714nm, and with a space group Pnma (No. 62) or Pna2₁ (No. 33). Expected d-values are presented and are successfully compared with the X-ray powder diffraction spectrum obtained from this oxide. Chemical composition is analyzed by the EPMA method and is determined to be Y₂BaCuO_5-y for the oxide.

Keywords

This publication has 2 references indexed in Scilit:

High-T_c Superconductivity of La-Ba-Cu Oxides. II. –Specification of the Superconducting Phase
Japanese Journal of Applied Physics, 1987
Specific Heat of a New Dense-Kondo Compound CePdIn
Japanese Journal of Applied Physics, 1987