Quasi-Hexagonal Vortex-Pinning Lattice Using Anodized Aluminum Oxide Nanotemplates

Hallet, Xavier
Matefi-Tempfli, Maria
Michotte, Sebastien
Piraux, Luc
Vanacken, Johan
Moshchalkov, Victor
Matefi-Tempfli, Stefan

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Publication date

November 2009

DOI

10.1002/smll.200900400

Publisher

Wiley

Journal

Small

Abstract

The bottom barrier layer of well-ordered nanoporous alumina membranes reveals a previously unexploited nanostructured template surface consisting of a triangular lattice of hemispherical nanoscale bumps. Quasi-hexagonal vortex-pinning lattice arrays are created in superconducting Nb films deposited onto this template (see image). Matching effects are preserved at higher magnetic fields and lower temperatures when compared to holes on the top face. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.status: publishe

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Quasi-Hexagonal Vortex-Pinning Lattice Using Anodized Aluminum Oxide Nanotemplates

Abstract

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Quasi-Hexagonal Vortex-Pinning Lattice Using Anodized Aluminum Oxide Nanotemplates

Abstract

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