ISIS Neutron and Muon Source Data Journal

Search for Vortex-Type Spin Structures in Iron Nanoparticles

Abstract: Magnetic nanoparticles (MNPs) exhibit physical, chemical, electrical, and biological properties that can significantly differ from the bulk material and are therefore used for catalysis, high density magnetic data storage, drug delivery systems, ferrofluids, and medical applications. Often in application-oriented studies, the magnetization distribution of MNPs is assumed to be spatially uniform (macrospin model), and the possible intraparticle spin misalignment is commonly not taken into account. Here, based on micromagnetic SANS simulations, we propose to experimentally study the transition from a single-domain to a vortex-type texture in spherical Fe MNPs and the ensuing signatures in the magnetic SANS cross section and correlation function. This work will contribute to the fundamental understanding of the magnetic SANS technique.

Principal Investigator: Dr Ivan Titov
Experimenter: Dr Diego Alba Venero
Experimenter: Dr Pierfrancesco Maltoni
Experimenter: Mr Michael Philipp Adams
Experimenter: Professor Andreas Michels
Local Contact: Dr Dirk Honecker
Experimenter: Dr Venus Rai
Experimenter: Professor Davide Peddis

DOI: 10.5286/ISIS.E.RB2510087

ISIS Experiment Number: RB2510087

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Ivan Titov et al; (2025): Search for Vortex-Type Spin Structures in Iron Nanoparticles, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510087

Data is released under the CC-BY-4.0 license.