Open AccessMAGNETIC FLUX PINNING AND CREEP IN (BiPb)-Sr-Ca-Cu-O 2223 PHASE HIGH-Tc SUPERCONDUCTOR
Author(s) -
Xin Jin,
Yitong Zhang,
Minghui Lu,
Zhang Chang-Gui,
Yongsheng Yan,
Yang Yu,
Shen Jiancang,
X.X. Yao
Publication year - 1991
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.40.630
Subject(s) - superconductivity , condensed matter physics , materials science , magnetometer , activation energy , phase (matter) , magnetic field , flux pinning , magnetic relaxation , creep , flux (metallurgy) , high temperature superconductivity , relaxation (psychology) , analytical chemistry (journal) , nuclear magnetic resonance , physics , chemistry , magnetization , composite material , psychology , social psychology , chromatography , quantum mechanics , metallurgy
The preparing method of (BiPb)-Sr-Ca-Cu-O 2223 phase high-Tc superconductor is introduced. The magnetic relaxation rate dependence on applied magnetic field was measured by using a vibrating sample magnetometer. From the above results, the relationship of activation energy U0 vs. applied magnetic fuild B is discussed. We found that the functional form is U0-B-a in the magnetic field range of 0-0.23 T. The results is similar with that of Pa-lstra based on resistance broadening experiment for single crystals.