Open AccessROLE OF Sb5+ AND Sb3+ IN THE FORMATION OF NEW HIGH TcPHASE
Author(s) -
Guoqiang Xia,
Wu Xiao-Zu,
Qingyun Li
Publication year - 1990
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.39.128-2
Subject(s) - phase (matter) , materials science , diffraction , antimony , computer science , physics , optics , metallurgy , quantum mechanics
By comparing the R-T curves and the X-ray diffraction patterns of samples containing Sb3+ and Sb5+ , we discuss the role of Sb5+ and Sb3+ in the formation of new high Tc phase. It is found that Sb3+ partly substitutes Bi3+ forming 2223 structure; but a new high Tc phase will be produced when Sb5+ is added to the system.