| Full text | |
| Author(s): |
Leite Gusmao Pinheiro, Lincoln Brum
[1, 2]
;
Motta, Maycon
[1]
;
Colauto, Fabian
[1]
;
Johansen, Tom H.
[3]
;
Bellingeri, Emilio
[4]
;
Bernini, Cristina
[4]
;
Ferdeghini, Carlo
[4]
;
Ortiz, Wilson A.
[1]
Total Authors: 8
|
| Affiliation: | [1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] Inst Fed Sao Paulo, Campus Sao Carlos, BR-13565905 Sao Carlos, SP - Brazil
[3] Univ Oslo, Dept Phys, N-0316 Oslo - Norway
[4] CNR SPIN, I-16152 Genoa - Italy
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | IEEE Transactions on Applied Superconductivity; v. 29, n. 5 AUG 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
When developing superconducting devices patterned on thin films, one should bear in mind that flux avalanches might occur for some materials at a certain window of applied fields and temperatures. Although the A15 superconductors are well known and used in a variety of purposes, there are no studies about flux avalanches in V3Si thin films. In the present work, we report the observation of flux avalanches in films of V3Si, grown by pulsed laser deposition on a LaAlO3 substrate. The range of temperatures and applied magnetic fields at which the avalanches take place is determined using dc-magnetometry. Magneto-Optical Imaging is employed to visualize the occurrence and spatial distribution of such flux avalanches. Images of the flux penetrated into the samples indicate a clear anisotropic distribution, which is ascribed to a thickness gradient. The observation of flux avalanches reported here implies that attention to this feature must be given when films of V3Si are envisaged for possible applications. (AU) | |
| FAPESP's process: | 17/24786-4 - Vortex Matter in Superconducting Films with Tunable Anisotropy |
| Grantee: | Fabiano Colauto |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 07/08072-0 - Fundamental research in superconductivity and magnetism - systems potentially useful for aplications: advanced oxides and superconductors patterned with artificial structures |
| Grantee: | Wilson Aires Ortiz |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/16193-6 - Applied Superconductivity Conference - ASC 2018 |
| Grantee: | Maycon Motta |
| Support Opportunities: | Research Grants - Meeting - Abroad |