Open AccessSUPERCONDUCTING CURRENT CARRYING PROPERTIES OF YbxY1-x Ba2Cu3O7-y
Author(s) -
Yong Zhao,
Sun Shifang,
Zhang Han,
Qirui Zhang
Publication year - 1989
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.38.694
Subject(s) - superconductivity , critical current , microstructure , materials science , condensed matter physics , grain size , current (fluid) , current density , physics , metallurgy , thermodynamics , quantum mechanics
The microstructure, superconductivity, and the superconducting current-carrying properties of YbxY1-xBa2Cu3O7-y are investigated systematically. We find that, when the content of Yb increases, Tc changes slightly, but the critical current density decreases with the grain size obviously. The results suggest that just decreasing the grain size can not increase the critical current density of such granuler superconductors in which the couplings among grains are weak.