The effect of links on the interparticle dipolar correlations in supramolecular magnetic filaments

Autor(en)

Pedro A. Sánchez, Joan J. Cerdà, Tomas M. Sintes, Alexey O. Ivanov, Sofia Kantorovich

Abstrakt

We present a combined computational and analytical study of supramolecular magnetic filaments, i.e., permanently linked chains of ferromagnetic nanocolloids. We put forward two different models for the interparticle connectivity within the chain. In the first model, the magnetic dipoles of the particles are free to rotate independently from the permanent links. The second model penalises the misalignment of the dipoles by coupling their orientations to the chain backbone. We show that the effect of the long-range magnetic dipolar interactions on the zero field net magnetic moment of the chain becomes less significant in the second case. However, the overall magnetic response in the model of freely rotating dipoles is much weaker.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Ural Federal University, University of the Balearic Islands

Journal

Soft Matter

Band

11

Seiten

2963-2972

Anzahl der Seiten

10

ISSN

1744-683X

DOI

https://doi.org/10.1039/C5SM00172B

Publikationsdatum

02-2015

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie, 103023 Polymerphysik, 103006 Chemische Physik, 103017 Magnetismus

ASJC Scopus Sachgebiete

Condensed Matter Physics, Allgemeine Chemie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/0bc9be07-9e6c-4eaf-a46e-202c0c16bc0e