ISSN:
1572-9605
Keywords:
Magnetization curves
;
Bean's model, High-T c superconductors
;
lower critical field
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract High-T c superconductors have critical currents that decay sharply with increasing magnetic field. We solve Bean's model forJ c decaying exponentially withH and obtain qualitative agreement with existing magnetization data. We show thatH c1 cannot be obtained from the linear part of the magnetization curve; it can only be inferred from a low-field anomaly in the hysteresis curve. Presently quoted values ofH c1 ,based on the linear part of the magnetization curve, are gross overestimates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00617875
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