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- Title
FLUX PINNING MECHANISM IN NEW MgCNi<sub>3</sub> SUPERCONDUCTOR.
- Authors
Fang, M. H.; Yang, J. H.; Wan, H. Y.; Zhang, W.; Kato, M.; Yoshimura, K.
- Abstract
The measurements of lower-critical-field Hc1(T), upper-critical-field Hc2(T) and the bulk pinning force Fp(H) were carried out for a superconductor MgCNi3 sample with Tc=7.5K prepared under high pressure. The sample has a good extensibility. We conclude that the flux pinning at lower fields results from the intra-granular structural defects, such as dislocations, and the enhancement of bulk pinning force near the irreversibility field Hirr is due to the softening of the flux lattice.
- Subjects
SUPERCONDUCTORS; CRYOELECTRONICS; ELECTRONIC materials; SOLID state electronics; DISLOCATIONS in crystals; CRYSTALLOGRAPHY; CRYSTALS
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2005, Vol 19, Issue 1-3, p327
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979205028517