Three-dimensional self-assembly using dipolar interaction

Abelmann, Leon; Hageman, Tijmen; Löthman, Per; Mastrangeli, Massimo; Elwenspoek, Miko

doi:10.1126/sciadv.aba2007

Three-dimensional self-assembly using dipolar interaction

Title

Three-dimensional self-assembly using dipolar interaction

Author

Abelmann, Leon (University of Twente; Saarland University)
Hageman, Tijmen (Saarland University; University of Twente)
Löthman, Per (University of Twente; Saarland University)
Mastrangeli, Massimo (TU Delft Electronic Components, Technology and Materials)
Elwenspoek, Miko (University of Twente)

Date

2020-05-01

Abstract

Interaction between dipolar forces, such as permanent magnets, generally leads to the formation of one-dimensional chains and rings. We investigated whether it was possible to let dipoles self-assemble into three-dimensional structures by encapsulating them in a shell with a specific shape. We found that the condition for self-assembly of a three-dimensional crystal is satisfied when the energies of dipoles in the parallel and antiparallel states are equal. Our experiments show that the most regular structures are formed using cylinders and cuboids and not by
spheroids. This simple design rule will help the self-assembly community to realize three-dimensional crystals from objects in the micrometer range, which opens up the way toward previously unknown metamaterials.

Subject

self-assembly
turbulence
Magnetic dipole
3D Printing
crystal
OA-Fund TU Delft

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http://resolver.tudelft.nl/uuid:fafc51cd-b7e0-4565-9777-2c6d6184a4a4

DOI

https://doi.org/10.1126/sciadv.aba2007

ISSN

2375-2548

Source

Science Advances, 6 (19)

Part of collection

Institutional Repository