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Quasi‐Hexagonal Vortex‐Pinning Lattice Using Anodized Aluminum Oxide Nanotemplates
Author(s) -
Hallet Xavier,
MátéfiTempfli Mária,
Michotte Sébastien,
Piraux Luc,
Vanacken Johan,
Moshchalkov Victor V.,
MátéfiTempfli Stefan
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200900400
Subject(s) - materials science , nanoporous , vortex , nanoscopic scale , hexagonal crystal system , condensed matter physics , anodizing , hexagonal lattice , lattice (music) , nanostructure , superconductivity , nanotechnology , oxide , aluminium , template , composite material , crystallography , metallurgy , chemistry , physics , antiferromagnetism , acoustics , thermodynamics
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.