Universität zu Köln

Hoffelner, Daniel, Kundt, Matthias, Schmidt, Annette M., Kentzinger, Emmanuel ORCID: 0000-0002-5348-7591, Bender, Philipp ORCID: 0000-0002-2492-3956 and Disch, Sabrina ORCID: 0000-0002-4565-189X (2015). Directing the orientational alignment of anisotropic magnetic nanoparticles using dynamic magnetic fields. Faraday Discuss., 181. S. 449 - 462. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1364-5498

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Abstract

The structure-directing influence of static and dynamic, i.e. rotating, magnetic fields on the orientational alignment of spindle-type hematite particles with a high aspect ratio is investigated. Structural characterization using electron microscopy and small-angle X-ray scattering confirms a nearly collinear particle arrangement with orientation of the main particle axis either parallel or perpendicular to the substrate as directed by the magnetic field geometry. The combination of large structural and magnetocrystalline anisotropies results in significantly different, strongly anisotropic magnetic properties of the assemblies revealed by directional magnetization measurements.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Hoffelner, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Kundt, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmidt, Annette M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kentzinger, Emmanuel UNSPECIFIED orcid.org/0000-0002-5348-7591 UNSPECIFIED Bender, Philipp UNSPECIFIED orcid.org/0000-0002-2492-3956 UNSPECIFIED Disch, Sabrina UNSPECIFIED orcid.org/0000-0002-4565-189X UNSPECIFIED
URN:	urn:nbn:de:hbz:38-418864
DOI:	10.1039/c4fd00242c
Journal or Publication Title:	Faraday Discuss.
Volume:	181
Page Range:	S. 449 - 462
Date:	2015
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1364-5498
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SMALL-ANGLE SCATTERING; HEMATITE PARTICLES; MORPHOLOGY; COLLOIDS; SILICA Multiple languages Chemistry, Physical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/41886