DocumentCode
1125254
Title
The irreversibility line of (Bi,Pb)2Sr2Ca2Cu3O10 determined by DC magnetization
Author
Green, S.M. ; Lobb, C.J. ; Greene, R.L.
Author_Institution
Dept. of Phys. & Astron., Maryland Univ., College Park, MD, USA
Volume
27
Issue
2
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
1061
Lastpage
1064
Abstract
The irreversibility line, H*(T), of c axis aligned B1.65Pb0.35Sr2Ca2Cu3 O10 is analyzed based on DC magnetization measurements for fields of up to 50 kOe. Its temperature dependence is found to be strongly based on the criterion used to determine irreversibility. Using sensitivity criteria of 5, 15, and 25×10-5 emu, the low field data fit H*~H0*(1-T/Tc)7, with γ≈2.3-2.6 and H0*~1.8×104 emu. Using fitted curves, the irreversibility line follows this equation over the entire field range with γ≈3.2 and H0*~35×104 emu
Keywords
bismuth compounds; calcium compounds; high-temperature superconductors; lead compounds; magnetisation; strontium compounds; superconducting critical field; DC magnetization; c axis aligned B1.65Pb0.35Sr2Ca2Cu3O10; fitted curves; high temperature superconductivity; irreversibility line; sensitivity criteria; temperature dependence; Convergence; Cooling; Equations; Magnetic field measurement; Magnetization; Pollution measurement; Powders; Strontium; Temperature; X-ray diffraction;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.133966
Filename
133966
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