The temperature and magnetic field dependences of inter-(i J) and intragrain (jc G) critical current densities obtained from magnetic measurements, as well as the relaxation of the intragrain magnetization, were studied on Bi-based ceramics. The best fitting for jJ is given byj J (B) = G(T)/(1 + B2/
Neutron irradiation and critical current enhancement in BI and Y-based superconductors
β Scribed by R. Puzniak; K.V. Rao
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 180 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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Polycrystalline oxide superconductors exhibit a complex magnetic susceptibility which is dependent on temperature. For a gi~en applied magnetic field, the imaginary component of the observed susceptibility can be maximized at Tci, the peak temperature. We have investigated the relationship between t