Universität zu Köln

Honecker, Dirk ORCID: 0000-0003-0763-982X, Bersweiler, Mathias ORCID: 0000-0002-8641-3337, Erokhin, Sergey, Berkov, Dmitry ORCID: 0000-0003-3883-5161, Chesnel, Karine, Venero, Diego Alba, Qdemat, Asma ORCID: 0000-0002-0207-9408, Disch, Sabrina ORCID: 0000-0002-4565-189X, Jochum, Johanna K. ORCID: 0000-0002-0066-0944, Michels, Andreas ORCID: 0000-0002-2786-295X and Bender, Philipp ORCID: 0000-0002-2492-3956 (2022). Using small-angle scattering to guide functional magnetic nanoparticle design. Nanoscale Adv., 4 (4). S. 1026 - 1060. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 2516-0230

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Abstract

Magnetic nanoparticles offer unique potential for various technological, biomedical, or environmental applications thanks to the size-, shape- and material-dependent tunability of their magnetic properties. To optimize particles for a specific application, it is crucial to interrelate their performance with their structural and magnetic properties. This review presents the advantages of small-angle X-ray and neutron scattering techniques for achieving a detailed multiscale characterization of magnetic nanoparticles and their ensembles in a mesoscopic size range from 1 to a few hundred nanometers with nanometer resolution. Both X-rays and neutrons allow the ensemble-averaged determination of structural properties, such as particle morphology or particle arrangement in multilayers and 3D assemblies. Additionally, the magnetic scattering contributions enable retrieving the internal magnetization profile of the nanoparticles as well as the inter-particle moment correlations caused by interactions within dense assemblies. Most measurements are used to determine the time-averaged ensemble properties, in addition advanced small-angle scattering techniques exist that allow accessing particle and spin dynamics on various timescales. In this review, we focus on conventional small-angle X-ray and neutron scattering (SAXS and SANS), X-ray and neutron reflectometry, gracing-incidence SAXS and SANS, X-ray resonant magnetic scattering, and neutron spin-echo spectroscopy techniques. For each technique, we provide a general overview, present the latest scientific results, and discuss its strengths as well as sample requirements. Finally, we give our perspectives on how future small-angle scattering experiments, especially in combination with micromagnetic simulations, could help to optimize the performance of magnetic nanoparticles for specific applications.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Honecker, Dirk UNSPECIFIED orcid.org/0000-0003-0763-982X UNSPECIFIED Bersweiler, Mathias UNSPECIFIED orcid.org/0000-0002-8641-3337 UNSPECIFIED Erokhin, Sergey UNSPECIFIED UNSPECIFIED UNSPECIFIED Berkov, Dmitry UNSPECIFIED orcid.org/0000-0003-3883-5161 UNSPECIFIED Chesnel, Karine UNSPECIFIED UNSPECIFIED UNSPECIFIED Venero, Diego Alba UNSPECIFIED UNSPECIFIED UNSPECIFIED Qdemat, Asma UNSPECIFIED orcid.org/0000-0002-0207-9408 UNSPECIFIED Disch, Sabrina UNSPECIFIED orcid.org/0000-0002-4565-189X UNSPECIFIED Jochum, Johanna K. UNSPECIFIED orcid.org/0000-0002-0066-0944 UNSPECIFIED Michels, Andreas UNSPECIFIED orcid.org/0000-0002-2786-295X UNSPECIFIED Bender, Philipp UNSPECIFIED orcid.org/0000-0002-2492-3956 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-686535
DOI:	10.1039/d1na00482d
Journal or Publication Title:	Nanoscale Adv.
Volume:	4
Number:	4
Page Range:	S. 1026 - 1060
Date:	2022
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	2516-0230
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language IRON-OXIDE NANOPARTICLES; X-RAY-ABSORPTION; POLARIZED NEUTRON REFLECTOMETRY; SHAPE-CONTROLLED SYNTHESIS; RESOLVED IN-SITU; SPIN-ECHO; GRAZING-INCIDENCE; CORE-SHELL; REAL-TIME; GAMMA-FE2O3 NANOPARTICLES Multiple languages Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68653