Vortex properties in superconducting Nb/Pd multilayers

C. Coccorese; C. Attanasio; L. Mercaldo; M. Salvato; L. Maritato; J. Slaughter; C. Falco; S. L. Prischepa; B. I. Ivlev

doi:10.1103/PhysRevB.57.7922

Vortex properties in superconducting Nb/Pd multilayers

C. Coccorese, C. Attanasio, L. Mercaldo, M. Salvato, L. Maritato, J. Slaughter, C. Falco, S. L. Prischepa, B. I. Ivlev

Optical Sciences, College of

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

27 Scopus citations

Abstract

We have investigated the upper critical magnetic field (Formula presented) the critical current density (Formula presented) and the pinning force (Formula presented) in sputtered Nb/Pd multilayers, varying the temperatures (Formula presented) the Pd thicknesses (Formula presented) and the magnetic field (Formula presented) orientation (parallel and perpendicular to the plane of the sample). In perpendicular fields, the vortex dynamics was strongly influenced by grain-boundary pinning. In parallel fields, a peak was observed in the (Formula presented) curves for samples with Pd thicknesses (Formula presented) After comparing the experimental results with the existing theories, we have related the presence of this peak effect to the matching of vortex kinks with the layered artificial structure.

Original language	English (US)
Pages (from-to)	7922-7929
Number of pages	8
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	57
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.57.7922
State	Published - Jan 1 1998

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "We have investigated the upper critical magnetic field (Formula presented) the critical current density (Formula presented) and the pinning force (Formula presented) in sputtered Nb/Pd multilayers, varying the temperatures (Formula presented) the Pd thicknesses (Formula presented) and the magnetic field (Formula presented) orientation (parallel and perpendicular to the plane of the sample). In perpendicular fields, the vortex dynamics was strongly influenced by grain-boundary pinning. In parallel fields, a peak was observed in the (Formula presented) curves for samples with Pd thicknesses (Formula presented) After comparing the experimental results with the existing theories, we have related the presence of this peak effect to the matching of vortex kinks with the layered artificial structure.",

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AU - Coccorese, C.

AU - Attanasio, C.

AU - Mercaldo, L.

AU - Salvato, M.

AU - Maritato, L.

AU - Slaughter, J.

AU - Falco, C.

AU - Prischepa, S. L.

AU - Ivlev, B. I.

PY - 1998/1/1

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N2 - We have investigated the upper critical magnetic field (Formula presented) the critical current density (Formula presented) and the pinning force (Formula presented) in sputtered Nb/Pd multilayers, varying the temperatures (Formula presented) the Pd thicknesses (Formula presented) and the magnetic field (Formula presented) orientation (parallel and perpendicular to the plane of the sample). In perpendicular fields, the vortex dynamics was strongly influenced by grain-boundary pinning. In parallel fields, a peak was observed in the (Formula presented) curves for samples with Pd thicknesses (Formula presented) After comparing the experimental results with the existing theories, we have related the presence of this peak effect to the matching of vortex kinks with the layered artificial structure.

AB - We have investigated the upper critical magnetic field (Formula presented) the critical current density (Formula presented) and the pinning force (Formula presented) in sputtered Nb/Pd multilayers, varying the temperatures (Formula presented) the Pd thicknesses (Formula presented) and the magnetic field (Formula presented) orientation (parallel and perpendicular to the plane of the sample). In perpendicular fields, the vortex dynamics was strongly influenced by grain-boundary pinning. In parallel fields, a peak was observed in the (Formula presented) curves for samples with Pd thicknesses (Formula presented) After comparing the experimental results with the existing theories, we have related the presence of this peak effect to the matching of vortex kinks with the layered artificial structure.

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Vortex properties in superconducting Nb/Pd multilayers

Abstract

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