DocumentCode
1500071
Title
Superconductivity, critical current density, and magnetic properties of Fe-substituted Y1Ba2(Cu1-xFex)3O z materials
Author
Sekula, S.T. ; Brynestad, J. ; Christen, D.K. ; Thompson, J.R. ; Kim, Y.C.
Author_Institution
Oak Ridge Nat. Lab., TN, USA
Volume
25
Issue
2
fYear
1989
fDate
3/1/1989 12:00:00 AM
Firstpage
2266
Lastpage
2269
Abstract
The superconductive properties of a series of Fe-substituted Y1Ba2(Cu1-xFex)3O z materials, with x =0 to 10 at.%Fe, have been studied. It was found that the T c decreased linearly with Fe content x at the rate of 6.7 K/at.%. The intragranular critical-current density J c decreased exponentially both with reduced temperature, T /T c, and Fe concentration. Since the addition of Fe strongly drives the structure toward tetragonality, it is concluded that neither copper-oxygen chains nor macroscopic twinning is essential for high-temperature superconductivity
Keywords
barium compounds; critical current density (superconductivity); high-temperature superconductors; magnetisation; yttrium compounds; Y1Ba2(Cu1-xFex)3 Oz; critical-current density; high temperature superconductors; magnetisation; Annealing; Critical current density; High temperature superconductors; Inorganic materials; Iron; Magnetic materials; Magnetic properties; Powders; Superconducting materials; Superconductivity;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.92759
Filename
92759
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