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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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Publication details

The article was received on 02 May 2011, accepted on 09 Aug 2011 and first published on 06 Sep 2011


Article type: Feature Article
DOI: 10.1039/C1JM11916H
Citation: J. Mater. Chem., 2011,21, 16686-16693
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    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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