| Full text | |
| Author(s): |
Carmo, D.
[1]
;
Colauto, F.
[1]
;
de Andrade, A. M. H.
[2]
;
Oliveira, A. A. M.
[3]
;
Ortiz, W. A.
[1]
;
Johansen, T. H.
[4, 5]
Total Authors: 6
|
| Affiliation: | [1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS - Brazil
[3] Inst Fed Educ Ciencia & Tecnol Sao Paulo, BR-15991502 Matao, SP - Brazil
[4] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522 - Australia
[5] Univ Oslo, Dept Phys, N-0316 Oslo - Norway
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | IEEE Transactions on Applied Superconductivity; v. 25, n. 3 JUN 2015. |
| Web of Science Citations: | 8 |
| Abstract | |
Dendritic flux avalanches triggered by thermomagnetic instabilities in Nb superconducting films have been limited by inclusion of circular holes of different diameters produced by optical lithography. We have observed a compromise between dendrite and hole sizes, for which avalanches are effectively arrested. For holes much smaller than the dendrites, only individual branches are stopped. Large holes are not a good solution, since they change the film geometry. A noteworthy trapping is observed at the holes with diameter between the width of an individual branch and the size of a whole dendrite. The present work shows the trend to optimize stop-holes for limiting thermomagnetic avalanches in superconducting films. (AU) | |
| FAPESP's process: | 13/16097-3 - Thermomagnetic instabilities in superconducting films: interaction among flux avalanches and non-superconducting regions created intentionally |
| Grantee: | Fabiano Colauto |
| Support Opportunities: | Regular Research Grants |