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Issue 42, 2011
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Self-assembly and flux closure studies of magnetic nanoparticle rings

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Abstract

Thermoremanent magnetic nanoparticles (MNPs) can self-assemble into rings through dipolar interactions, when dispersed under appropriate conditions. Analysis of individual MNP rings and clusters by off-axis electron holography reveals bistable flux closure (FC) states at ambient temperatures, and their reversible switching by magnetic field gradients. We introduce a line-bond formalism to describe the coupling between MNPs.

Graphical abstract: Self-assembly and flux closure studies of magnetic nanoparticle rings

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Article information


Submitted
02 May 2011
Accepted
09 Aug 2011
First published
06 Sep 2011

J. Mater. Chem., 2011,21, 16686-16693
Article type
Feature Article

Self-assembly and flux closure studies of magnetic nanoparticle rings

A. Wei, T. Kasama and R. E. Dunin-Borkowski, J. Mater. Chem., 2011, 21, 16686
DOI: 10.1039/C1JM11916H

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