Superconducting properties of a mesoscopic parallelepiped with anisotropic surface conditions

Autor(es)

Barba-Ortega, J. ^[1] ; Sardella, Edson ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Nacl Colombia, Dept Fis, Bogota - Colombia

^[2] Univ Estadual Paulista, UNESP, Dept Fis, Bauru, SP - Brazil

^[3] Univ Estadual Paulista, UNESP, IPMet Inst Pesquisas Meteorol, BR-17048699 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters A; v. 379, n. 47-48, p. 3130-3135, DEC 18 2015.
• Citações Web of Science: 7

Resumo

We consider a mesoscopic superconducting parallelepiped with different boundary conditions on different parts of the surface, xy, xz and yz surface planes. This is realized by considering different values of the de Gennes extrapolation length b on different surfaces of the sample. Our investigation was carried out by solving the three-dimensional (3D) time dependent Ginzburg-Landau (TDGL) equations. We studied the local magnetic field, order parameter, and both the magnetization and vorticity curves as functions of the external applied magnetic field for different values of b on the surfaces of the sample. We show that this surface anisotropy has very strong influence on the vortex configurations and the magnetization as a function of the external applied magnetic field, both experimentally accessible. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 12/04388-0 - Simulação tridimensional dos efeitos de desmagnetização em filmes supercondutores nanoestruturados
• Beneficiário: Edson Sardella
• Modalidade de apoio: Auxílio à Pesquisa - Regular