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Direct-write of free-form building blocks for artificial magnetic 3D lattices
Goethe Univ, Germany.
Goethe Univ, Germany.
Goethe Univ, Germany.
Graz Ctr Electron Microscopy, Austria.
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2018 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, article id 6160Article in journal (Refereed) Published
Abstract [en]

By the fabrication of periodically arranged nanomagnetic systems it is possible to engineer novel physical properties by realizing artificial lattice geometries that are not accessible via natural crystallization or chemical synthesis. This has been accomplished with great success in two dimensions in the fields of artificial spin ice and magnetic logic devices, to name just two. Although first proposals have been made to advance into three dimensions (3D), established nanofabrication pathways based on electron beam lithography have not been adapted to obtain free-form 3D nanostructures. Here we demonstrate the direct-write fabrication of freestanding ferromagnetic 3D nano-architectures. By employing micro-Hall sensing, we have determined the magnetic stray field generated by our free-form structures in an externally applied magnetic field and we have performed micromagnetic and macro-spin simulations to deduce the spatial magnetization profiles in the structures and analyze their switching behavior. Furthermore we show that the magnetic 3D elements can be combined with other 3D elements of different chemical composition and intrinsic material properties.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2018. Vol. 8, article id 6160
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-147798DOI: 10.1038/s41598-018-24431-xISI: 000430280600012PubMedID: 29670129OAI: oai:DiVA.org:liu-147798DiVA, id: diva2:1206485
Note

Funding Agencies|Deutsche Forschungsgemeinschaft (DFG) [SFB/TR 49]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]; Faculty of Materials Engineering, University of Babylon, Babylon, Iraq; Deutscher Akademischer Austauschdienst (DAAD); COST Action [CM1301]

Available from: 2018-05-17 Created: 2018-05-17 Last updated: 2018-06-04

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  • apa
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