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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Vortex Dynamic Phases in Type II Superconducting Strips with Regular and Flattened Triangular Pinning Arrays

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Verga, L. G. [1] ; Vizarim, N. P. [2] ; Carlone, M. [2] ; Venegas, P. A. [3]
Total Authors: 4
[1] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants - England
[2] Univ Estadual Paulista UNESP, Fac Ciencias, Programa Posgrad Ciencia & Tecnol Mat POSMAT, CP 473, BR-17033360 Bauru, SP - Brazil
[3] Univ Estadual Paulista UNESP, Fac Ciencias, Dept Fis, CP 473, BR-17033360 Bauru, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Superconductivity and Novel Magnetism; v. 32, n. 5, p. 1179-1190, MAY 2019.
Web of Science Citations: 0

The dynamic behavior of vortices in type II superconducting infinite strips is simulated with two types of triangular pinning lattices: the regular one and a flattened triangular array that mimics the vortex lattice in a superconducting strip in the absence of a pinning array. The calculations were made at zero temperature and perpendicular magnetic field. The size effects are investigated for several strip widths maintaining the density and size of pinning centers unchanged. A driving force is applied in the infinite direction to analyze the depinning process and the different dynamic regimes. For the regular triangular pinning lattice, we found that there is a great richness of vortex dynamical phases because depending on strip width, part of the vortices may stabilize in different interstitial positions and the depinning process depends on the commensurability of each vortex chain. For the flattened triangular lattice, the system exhibits one ordered moving phase for narrower strips and two moving phases for the larger strip. As the transport force increases, vortices in the larger strip go from a disordered to an ordered phase. Moreover, the flattened lattice shows a much higher critical depinning force than the regular one due to commensurability effects. (AU)

FAPESP's process: 12/22141-2 - Study of size effects in critical currents and dynamical behavior of vortices in type ii superconducting strips with periodic pinning at finite temperature.
Grantee:Lucas Garcia Verga
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 17/20976-3 - Dynamic behavior of skyrmions under the influence of periodic pinning in chiral magnetic infinite thin films
Grantee:Nicolas Porto Vizarim
Support Opportunities: Scholarships in Brazil - Doctorate