We investigate flux penetration in a disordered type-II superconductor by molecular dynamics simulations of interacting vortices. We focus on the effect of different boundary conditions on the scaling laws for flux front propagation. The numerical results can be interpreted using a coarse-grained description of the system in terms of a nonlinear diffusion equation. We propose a phenomenological equation for the front position that captures the essential behavior of the system and recovers the scaling exponents.

Boundary effects on flux penetration in disordered superconductors / A.A. Moreira, J. S. Andrade Jr., J. Mendes Filho, S. Zapperi. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 66:17(2002), pp. 174507.1-174507.5.

Boundary effects on flux penetration in disordered superconductors

S. Zapperi
2002

Abstract

We investigate flux penetration in a disordered type-II superconductor by molecular dynamics simulations of interacting vortices. We focus on the effect of different boundary conditions on the scaling laws for flux front propagation. The numerical results can be interpreted using a coarse-grained description of the system in terms of a nonlinear diffusion equation. We propose a phenomenological equation for the front position that captures the essential behavior of the system and recovers the scaling exponents.
Bean critical-state; II superconductors; plastic-flow; vortex avalanches; magnetic flux; dynamics; lattice; lopps; films
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
Settore FIS/03 - Fisica della Materia
2002
Article (author)
File in questo prodotto:
File Dimensione Formato  
PhysRevB.66.174507.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 126.66 kB
Formato Adobe PDF
126.66 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/655533
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 10
social impact