ISSN:
1572-9605
Keywords:
Critical current
;
high magnetic fields
;
flux pinning
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract The magnetic properties of ceramic HgBa2Ca2Cu3O8 have been investigated using pulsed magnetic fields up to 50 tesla. The irreversibility line H irr (T) and the magnetic critical current J c,m (H,T) have been extracted from the high field hysteresis loops. Irreversibility fields exceed available fields at temperatures below 15 K. The magnetic critical current J c,m is strongly dependent on the granular structure of the ceramic superconductor. This is reflected in the moderate value of the critical current density and its significant field dependence.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022613425059
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