| Full text | |
| Author(s): |
Hernandez-Wolpez, M.
[1]
;
Gutierrez-Rivero, L. C.
[1]
;
Garcia-Fornaris, I
[2]
;
Govea-Alcaide, E.
[3]
;
Abud, F.
[4]
;
Jardim, R. F.
[4]
;
Mune, P.
[5]
Total Authors: 7
|
| Affiliation: | [1] Univ Camaguey, Dept Fis, Ctra Circunvalac Norte, Km 51-2, Camaguey - Cuba
[2] Univ Granma, Dept Ciencias Basicas, Apartado 21, Box 85100, Bayamo - Cuba
[3] Univ Fed Amazonas, Dept Fis, Av Gen Rodrigo Octavio 6200, Coroado 1, BR-69077000 Manaus, Amazonas - Brazil
[4] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo, SP - Brazil
[5] Univ Oriente, Dept Fis, Patricio Lummumba S-N, POB 90500, Santiago De Cuba - Cuba
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | REVISTA MEXICANA DE FISICA; v. 66, n. 1, p. 42-46, JAN-FEB 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
A preliminary study of the magnetic relaxation in (Bi, Pb)-2223 superconducting ceramics doped with alpha-Al2O3 nanoparticles is presented, taking as starting point the measurements of the M(t) dependence, both in samples in the form of powder as in pellet. The relaxation of the three types of vortices that can exist inside these materials is analyzed, emphasizing on the intragranular region where the planar defects exist and, consequently, Abrikosov-Josephson vortices emerge. Finally, interesting results of the comparison between the behavior of the samples in the form of powder and in the form of pellet are shown from the estimation of the pinning energy of the vortices. (AU) | |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 14/19245-6 - Search for novel superconducting materials |
| Grantee: | Renato de Figueiredo Jardim |
| Support Opportunities: | Scholarships abroad - Research |