Current density and penetrated magnetic flux distribution are calculated for a strip of constant thickness d that carries a time-dependent transport current /. Calculations assume a logarithmic activation energy U(j) ∼ In(Jc/j) to account for thermal activated motion of vortices, and a critical sheet current Jc(B, r) = jc(B,r)d that may be magnetic-field and position dependent (j and Jc are the current and critical current densities). © 2000 Elsevier Science B.V. All rights reserved.
Documento: | Artículo |
Título: | Flux and current distributions in type-II superconducting strips |
Autor: | Valenzuela, S.O.; Ferrari, H.; Bekeris, V. |
Filiación: | Laboratorio de Bajas Temperaturas, Depto. de Física, Ciudad Universitaria, 1428, Buenos Aires, Argentina |
Palabras clave: | Creep; Critical state; Nonlinear response; Surface barrier; Activation energy; Critical current density (superconductivity); Current voltage characteristics; Electric current distribution; High temperature superconductors; Magnetic flux; Mathematical models; Numerical analysis; Vortex flow; Magnetic flux distribution; Oxide superconductors |
Año: | 2000 |
Volumen: | 284-288 |
Número: | PART I |
Página de inicio: | 839 |
Página de fin: | 840 |
DOI: | http://dx.doi.org/10.1016/S0921-4526(99)02151-1 |
Título revista: | Physica B: Condensed Matter |
Título revista abreviado: | Phys B Condens Matter |
ISSN: | 09214526 |
CODEN: | PHYBE |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v284-288_nPARTI_p839_Valenzuela |