Open AccessDETERMINATION OF OXYGEN CONTENT IN HIGH Tc SUPERCONDUCTORS BY DEUTERON PARTICLE ACTIVATION ANALYSIS
Author(s) -
Tao Zhenlan,
D.E. Alburger,
Keith Jones,
Y. D. Yao,
Y. H. Kao
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.326
Subject(s) - stoichiometry , bismuth , orthorhombic crystal system , materials science , superconductivity , oxygen , analytical chemistry (journal) , copper , high temperature superconductivity , content (measure theory) , x ray crystallography , cuprate , powder diffraction , diffraction , crystallography , crystal structure , chemistry , condensed matter physics , physics , metallurgy , mathematical analysis , mathematics , organic chemistry , chromatography , optics
The experimental method for determining the oxygen content in high Tc superconduc tors is described in detail. This method is applied to determination of oxygen content in high Tc Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O samples in which the stoichiometry is varied by reducing the copper and bismuth concentrations. The oxygen concentration is found to vary linearly with Cu (x= 0-0,2) and Bi (x= 0-0.4) deficiencies in YBa2Cu3(1-x)Oy and Bi2(1-x)Sr2CaCu2Oy respectively. X-ray powder diffraction measurements show that the compound of YBa2Cu3(1-x)Oy, is orthorhombic in the variation range of x=0-0.2