Magnetization curves of bulk REBa2Cu3O7= v samples (RE=Gd, Dy, Er, Eu, Y) with T~(R = 0) ~> 90 K have been measured at various temperatures for different sweep amplitudes of the magnetic field up to Hmax = 4.7 T. Using the critical state model, intergranular and intragranular critical current densit
โฆ LIBER โฆ
Magnetic hysteresis of transport critical current in polycrystalline YBCO
โ Scribed by W.F. Huang; K.J. Hung; J.G. Shen
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 254 KB
- Volume
- 208
- Category
- Article
- ISSN
- 0921-4534
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It was found that pressure has a strong influence on the critical current hysteresis loop of cerar01cs at H ~ I0 kOe. The phenomenon is attributed to the critical current hysteresis of separate Josephson contacts and is due to the Abrikosov vortex density gradient within granules. The gradient defin