YBa2Cu307 crystals fabricated by a quench and melt growth process contain fine Y2BaCuO5 particles. These fine precipitates are considered to have three beneficial effects: they suppress crack formation; they promote oxygen diffusion; and they act as pinning centres. Such crystals exhibit larger flux
Model for flux creep in high Tc superconductors
β Scribed by D. Dew-Hughes
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 409 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
A model for flux creep in high T c superconductors is developed The model predicts that assocmted w=th the flux creep regime ~s a resistance which shows a hnear variation wtth apphed magnetic field It is demonstrated that the model Js consistent with the hmJted experimental data avadable
π SIMILAR VOLUMES
This paper reports the experimental investigations into two different methods of reducing flux creep and magnetic relaxation in high T c YBa2Cu307 and low T c Nb-Ti. For temperatures T \_< 4.2 K temperature reduction leads to a considerable reduction of the flux creep rate. The second method for red
The normalized decay rate of a persistent current due to thermally activated flux creep is discussed theoretically for the case of a long superconducting solenoid wound with wires of superconducting tape, It is shown that the normalized decay rate of the transport current in the solenoid for the per