Vortex lattice motion in the flux creep regime on asymmetric pinning potentials

D. Perez De Lara; M. Velez; A. Gomez; F. Galvez; A. Alija; M. A. Garcia; J. I. Martín; E. M. Gonzalez; J. L. Vicent

doi:10.1088/0953-2048/26/3/035016

Vortex lattice motion in the flux creep regime on asymmetric pinning potentials

D. Perez De Lara^*, M. Velez, A. Gomez, F. Galvez, A. Alija, M. A. Garcia, J. I. Martín, E. M. Gonzalez, J. L. Vicent

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Vortex lattice dynamics is investigated in the adiabatic regime in superconducting/magnetic nanostructures for strong and weak asymmetric pinning potentials, provided by a rectangular array of Ni triangles and a kagomé-like array of Ni dots, respectively. The AC voltage response of the AC-driven superconducting vortex lattice is measured in addition to the DC voltage response. The results allow us to link voltage rectification effects with the vortex lattice dynamics. In particular, for the weaker pinning kagomé-like array, a high-temperature zero critical current regime is identified, in which both AC and DC voltage responses can be described in terms of a simple model of thermal activation of single vortices over finite asymmetric barriers.

Original language	English
Article number	035016
Journal	Superconductor Science and Technology
Volume	26
Issue number	3
DOIs	https://doi.org/10.1088/0953-2048/26/3/035016
State	Published - Mar 2013
Externally published	Yes

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title = "Vortex lattice motion in the flux creep regime on asymmetric pinning potentials",

abstract = "Vortex lattice dynamics is investigated in the adiabatic regime in superconducting/magnetic nanostructures for strong and weak asymmetric pinning potentials, provided by a rectangular array of Ni triangles and a kagom{\'e}-like array of Ni dots, respectively. The AC voltage response of the AC-driven superconducting vortex lattice is measured in addition to the DC voltage response. The results allow us to link voltage rectification effects with the vortex lattice dynamics. In particular, for the weaker pinning kagom{\'e}-like array, a high-temperature zero critical current regime is identified, in which both AC and DC voltage responses can be described in terms of a simple model of thermal activation of single vortices over finite asymmetric barriers.",

author = "{Perez De Lara}, D. and M. Velez and A. Gomez and F. Galvez and A. Alija and Garcia, {M. A.} and Mart{\'i}n, {J. I.} and Gonzalez, {E. M.} and Vicent, {J. L.}",

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doi = "10.1088/0953-2048/26/3/035016",

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TY - JOUR

T1 - Vortex lattice motion in the flux creep regime on asymmetric pinning potentials

AU - Perez De Lara, D.

AU - Velez, M.

AU - Gomez, A.

AU - Galvez, F.

AU - Alija, A.

AU - Garcia, M. A.

AU - Martín, J. I.

AU - Gonzalez, E. M.

AU - Vicent, J. L.

PY - 2013/3

Y1 - 2013/3

N2 - Vortex lattice dynamics is investigated in the adiabatic regime in superconducting/magnetic nanostructures for strong and weak asymmetric pinning potentials, provided by a rectangular array of Ni triangles and a kagomé-like array of Ni dots, respectively. The AC voltage response of the AC-driven superconducting vortex lattice is measured in addition to the DC voltage response. The results allow us to link voltage rectification effects with the vortex lattice dynamics. In particular, for the weaker pinning kagomé-like array, a high-temperature zero critical current regime is identified, in which both AC and DC voltage responses can be described in terms of a simple model of thermal activation of single vortices over finite asymmetric barriers.

AB - Vortex lattice dynamics is investigated in the adiabatic regime in superconducting/magnetic nanostructures for strong and weak asymmetric pinning potentials, provided by a rectangular array of Ni triangles and a kagomé-like array of Ni dots, respectively. The AC voltage response of the AC-driven superconducting vortex lattice is measured in addition to the DC voltage response. The results allow us to link voltage rectification effects with the vortex lattice dynamics. In particular, for the weaker pinning kagomé-like array, a high-temperature zero critical current regime is identified, in which both AC and DC voltage responses can be described in terms of a simple model of thermal activation of single vortices over finite asymmetric barriers.

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U2 - 10.1088/0953-2048/26/3/035016

DO - 10.1088/0953-2048/26/3/035016

M3 - 文章

AN - SCOPUS:84873893233

VL - 26

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 3

M1 - 035016

ER -

Vortex lattice motion in the flux creep regime on asymmetric pinning potentials

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