Abstract
A strong pinning force in a Nb superconducting thin film is formed by a triangular lattice of defects due to the structural corrugation that acts as pinning centers. The magnetoresistance measurement close to the transition temperature shows a set of minima of magnetoresistance at equal external field intervals. A crossover in current-voltage relations with matching field and half-integer matching field occurs for currents exceeding a certain threshold value. The phenomenon is related to the presence of pinning structures at matching fields.
| Original language | English |
|---|---|
| Pages (from-to) | e1107-e1108 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 272-276 |
| Issue number | SUPPL. 1 |
| DOIs | |
| Publication status | Published - 2004 May 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Horng, L., Wu, J. C., Kang, P. C., Wu, T. C., & Yang, T. J. (2004). Matching effect and flux pinning force in a Nb superconducting thin film with a triangular lattice of artificial pinning centers. Journal of Magnetism and Magnetic Materials, 272-276(SUPPL. 1), e1107-e1108. https://doi.org/10.1016/j.jmmm.2003.12.1040