DocumentCode
802218
Title
Magnetic Relaxation in YBaCuO Systems Prepared by Modified Melt-Textured Growth Method
Author
Tenya, K. ; Miyajima, H. ; Ishikawa, Y. ; Kohayashi, S. ; Yoshizawa, S.
Author_Institution
Keio University.
Volume
8
Issue
3
fYear
1993
fDate
3/1/1993 12:00:00 AM
Firstpage
192
Lastpage
197
Abstract
Magnetic relaxation in YBa2 Cu3 O7 high-Tc superconductor system samples prepared by a modified melt-textured growth method was investigated. The relaxation rate S, given by M¿1 dM/d log(t), is independent of the magnetic field and temperature below a given temperature T0 , which decreases with increasing magnetic field. The pinning potential, evaluated from temperature-independent S values, increases with temperature, but the behavior is not intrinsic. However, at temperatures above T0 , S increases with temperature, giving a potential dependent on log(Jc ).
Keywords
High temperature superconductors; Magnetic field measurement; Magnetic fields; Magnetics Society; Magnetization; Superconducting magnets; Superconductivity; Temperature dependence; Vibration measurement; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Magnetics in Japan, IEEE Translation Journal on
Publisher
ieee
ISSN
0882-4959
Type
jour
DOI
10.1109/TJMJ.1993.4565602
Filename
4565602
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