Spontaneous in-flight assembly of magnetic nanoparticles into macroscopic chains

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dc.citation.issue30
dc.citation.rankM21a
dc.citation.spage14194
dc.citation.volume11
dc.contributor.authorBalcells, Lluis
dc.contributor.authorStanković, Igor
dc.contributor.authorKonstantinović, Zorica
dc.contributor.authorAlagh, Aanchal
dc.contributor.authorFuentes, Victor
dc.contributor.authorLópez-Mir, Laura
dc.contributor.authorOró, Judit
dc.contributor.authorMestres, Narcis
dc.contributor.authorGarcía, Carlos
dc.contributor.authorPomar, Alberto
dc.contributor.authorMartínez, Benjamin
dc.date.accessioned2024-06-25T12:35:31Z
dc.date.available2024-06-25T12:35:31Z
dc.date.issued2019-08-14
dc.description.abstractKnowing the interactions controlling aggregation processes in magnetic nanoparticles is of strong interest in preventing or promoting nanoparticles' aggregation at wish for different applications. Dipolar magnetic interactions, proportional to the particle volume, are identified as the key driving force behind the formation of macroscopic aggregates for particle sizes above about 20 nm. However, aggregates' shape and size are also strongly influenced by topological ordering. 1-D macroscopic chains of several micrometer lengths are obtained with cube-shaped magnetic nanoparticles prepared by the gas-aggregation technique. Using an analytical model and molecular dynamics simulations, the energy landscape of interacting cube-shaped magnetic nanoparticles is analysed revealing unintuitive dependence of the force acting on particles with the displacement and explaining pathways leading to their assembly into long linear chains. The mechanical behaviour and magnetic structure of the chains are studied by a combination of atomic and magnetic force measurements, and computer simulation. The results demonstrate that [111] magnetic anisotropy of the cube-shaped nanoparticles strongly influences chain assembly features.
dc.identifier.doi10.1039/c9nr02314c
dc.identifier.issn2040-3364
dc.identifier.issn2040-3372
dc.identifier.scopus2-s2.0-85070558029
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/141
dc.identifier.wos000484234700013
dc.language.isoen
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.ispartofNanoscale
dc.relation.ispartofabbrNanoscale
dc.rightsopenAccess
dc.titleSpontaneous in-flight assembly of magnetic nanoparticles into macroscopic chains
dc.typeArticle
dc.type.versionpublishedVersion
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