Document Detail


Colloidal domain lithography for regularly arranged artificial magnetic out-of-plane monodomains in Au/Co/Au layers.
MedLine Citation:
PMID:  21258148     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Regularly arranged magnetic out-of-plane patterns in continuous and flat films are promising for applications in data storage technology (bit patterned media) or transport of individual magnetic particles. Whereas topographic magnetic structures are fabricated by standard lithographical techniques, the fabrication of regularly arranged artificial domains in topographically flat films is difficult, since the free energy minimization determines the existence, shape, and regularity of domains. Here we show that keV He( + ) ion bombardment of Au/Co/Au layer systems through a colloidal mask of hexagonally arranged spherical polystyrene beads enables magnetic patterning of regularly arranged cylindrical magnetic monodomains with out-of-plane magnetization embedded in a ferromagnetic matrix with easy-plane anisotropy. This colloidal domain lithography creates artificial domains via periodic lateral anisotropy variations induced by periodic defect density modulations. Magnetization reversal of the layer system observed by magnetic force microscopy shows individual disc switching indicating monodomain states.
Authors:
Piotr Kuświk; Arno Ehresmann; Maria Tekielak; Bogdan Szymański; Iosif Sveklo; Piotr Mazalski; Dieter Engel; Jan Kisielewski; Daniel Lengemann; Maciej Urbaniak; Christoph Schmidt; Andrzej Maziewski; Feliks Stobiecki
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Publication Detail:
Type:  Journal Article     Date:  2011-01-24
Journal Detail:
Title:  Nanotechnology     Volume:  22     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-01-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  095302     Citation Subset:  IM    
Affiliation:
Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland.
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