Article ID Journal Published Year Pages File Type
1817958 Physica C: Superconductivity and its Applications 2013 4 Pages PDF
Abstract

•Magnetic nanostripes strongly pin vortices in PbBi-Ni hybrids.•Magnetic nanostripes are ineffective in pinning vortices in Sn-Co hybrids.•Effective magnetic pinning by magnetic nanostripes requires coherence length significantly smaller than nanostripe period.

We present studies of the transport properties of a Pb82Bi18 and Sn superconducting film with an array of parallel nickel or cobalt magnetic nanostripes (500 nm period) deposited on the top of a germanium insulating layer covering the superconducting film surface. The critical current parallel to the stripes is significantly larger than critical current perpendicular to the stripes for Pb82Bi18.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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