New conception of the critical-velocity model in superconductors
✍ Scribed by S. Takács
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 123 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0375-9601
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An analysis of the electromagnetic stresses on a hard superconductor wire has been performed bY the critical state model. A theoretical approach has been carried out by taking into account both the field produced by the current flowing in the wire and an external field orthogonal to the wire axis.
Intragrain critical current densities (Jc) are usually inferred from magnetization measurements using Bean's critical state model. Using this model results are presented for the case of Jc decaying exponentially with field and explanations are given for the observed changes in the shape of the magne