Artigo
Vortex-antivortex annihilation in mesoscopic superconductors with a central pinning center
Registro en:
Physica C-superconductivity And Its Applications. Amsterdam: Elsevier Science Bv, v. 503, p. 94-97, 2014.
0921-4534
10.1016/j.physc.2014.04.007
WOS:000340070600018
6913351251148957
7799253646119889
0000-0001-7041-8136
0000-0002-2419-2049
Autor
Zadorosny, R. [UNESP]
Duarte, E. C. S. [UNESP]
Sardella, Edson [UNESP]
Ortiz, W. A.
Resumen
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. Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação para o Desenvolvimento da UNESP (FUNDUNESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Univ Estadual Paulista, Fac Engn, Dept Quim & Fis, Dept Desenvolvimento Aplicac Mat, BR-15385000 Ilha Solteira, SP, Brazil Univ Estadual Paulista, Fac Ciencias, Dept Fis, BR-17033360 Bauru, SP, Brazil Univ Estadual Paulista, Inst Pesquisas Metereol IPMet, BR-17048699 Bauru, SP, Brazil Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil Univ Estadual Paulista, Fac Engn, Dept Quim & Fis, Dept Desenvolvimento Aplicac Mat, BR-15385000 Ilha Solteira, SP, Brazil Univ Estadual Paulista, Fac Ciencias, Dept Fis, BR-17033360 Bauru, SP, Brazil Univ Estadual Paulista, Inst Pesquisas Metereol IPMet, BR-17048699 Bauru, SP, Brazil FAPESP: 13/11114-7 FAPESP: 07/08072-0