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Issue 33, 2020
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Layering of magnetic nanoparticles at amorphous magnetic templates with perpendicular anisotropy

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Abstract

We reveal the assembly of magnetite nanoparticles of sizes 5 nm, 15 nm and 25 nm from dilute water-based ferrofluids onto an amorphous magnetic template with out-of-plane anisotropy. From neutron reflectometry experiments we extract density profiles and show that the particles self-assemble into layers at the magnetic surface. The layers are extremely stable against cleaning and rinsing of the substrate. The density of the layers is determined by and increases with the remanent magnetic moment of the particles.

Graphical abstract: Layering of magnetic nanoparticles at amorphous magnetic templates with perpendicular anisotropy

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Article information


Submitted
12 Jun 2020
Accepted
29 Jul 2020
First published
03 Aug 2020

This article is Open Access

Soft Matter, 2020,16, 7676-7684
Article type
Paper

Layering of magnetic nanoparticles at amorphous magnetic templates with perpendicular anisotropy

A. Saini, J. A. Borchers, S. George, B. B. Maranville, K. L. Krycka, J. A. Dura, K. Theis-Bröhl and M. Wolff, Soft Matter, 2020, 16, 7676
DOI: 10.1039/D0SM01088J

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