Vortex-antivortex annihilation in mesoscopic superconductors with a central pinning center

Autor(es)

Zadorosny, R. ^[1] ; Duarte, E. C. S. ^[1] ; Sardella, E. ^{[2, 3]} ; Ortiz, W. A. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Engn, Dept Quim & Fis, Dept Desenvolvimento Aplicac Mat, BR-15385000 Ilha Solteira, SP - Brazil

^[2] Univ Estadual Paulista, Fac Ciencias, Dept Fis, BR-17033360 Bauru, SP - Brazil

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

^[4] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS; v. 503, p. 94-97, AUG 15 2014.
• Citações Web of Science: 4

Resumo

In this work we solved the time-dependent Ginzburg-Landau equations, TDGL, to simulate two superconducting systems with different lateral sizes and with an antidot inserted in the center. Then, by cycling the external magnetic field, the creation and annihilation dynamics of a vortex-antivortex pair was studied as well as the range of temperatures for which such processes could occur. We verified that in the annihilation process both vortex and antivortex acquire an elongated format while an accelerated motion takes place. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 07/08072-0 - Pesquisa fundamental em supercondutividade e magnetismo - sistemas com potencial para aplicações: óxidos avançados e supercondutores dotados de estruturas artificiais
• Beneficiário: Wilson Aires Ortiz
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 13/11114-7 - 11th European Conference on Applied Superconductivity - EUCAS 2013
• Beneficiário: Rafael Zadorosny
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior