Direct-write of free-form building blocks for artificial magnetic 3D lattices

  • 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.

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Author:Lukas Keller, Mohanad K. I. Al Mamoori, Jonathan Pieper, Christian Gspan, Irina Stockem, Christian Schröder, Sven BarthORCiDGND, Robert WinklerORCiD, Harald PlankORCiD, Merlin Pohlit, Jens Müller, Michael HuthORCiDGND
URN:urn:nbn:de:hebis:30:3-472233
DOI:https://doi.org/10.1038/s41598-018-24431-x
ISSN:2045-2322
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/29670129
Parent Title (English):Scientific reports
Publisher:Macmillan Publishers Limited, part of Springer Nature
Place of publication:[London]
Document Type:Article
Language:English
Year of Completion:2018
Date of first Publication:2018/04/18
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2018/08/14
Tag:Nanoscale materials
Volume:8
Issue:1, Art. 6160
Page Number:13
First Page:1
Last Page:13
Note:
Rights and permissions: Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
HeBIS-PPN:450868575
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Open-Access-Publikationsfonds:Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0