Bottom-up strategies for the assembling of magnetic systems using nanoclusters
| Autor: | Florent Tournus, A. Robert, Clément Albin, L. Bardotti, Alexandre Tamion, Arnaud Hillion, P. Capiod, Ghassan Khadra, O. Boisron, O. Loiselet, D. Le Roy, Véronique Dupuis |
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| Přispěvatelé: | Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Magnetometer FOS: Physical sciences Bioengineering 02 engineering and technology 01 natural sciences law.invention Nanoclusters law 0103 physical sciences General Materials Science 010306 general physics Condensed Matter - Materials Science Magnetic moment Condensed matter physics Magnetic circular dichroism Relaxation (NMR) Materials Science (cond-mat.mtrl-sci) General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Nanomagnet Atomic and Molecular Physics and Optics SQUID Magnetic anisotropy Modeling and Simulation [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] 0210 nano-technology |
| Zdroj: | Journal of Nanoparticle Research Journal of Nanoparticle Research, 2018, 20 (5), ⟨10.1007/s11051-018-4189-3⟩ Journal of Nanoparticle Research, Springer Verlag, 2018, 20 (5), ⟨10.1007/s11051-018-4189-3⟩ |
| ISSN: | 1388-0764 1572-896X |
| Popis: | International audience; In the frame of the 20th Anniversary of the Journal of Nanoparticle Research (JNR), our aim is to start from the historical context twenty, years ago and to give some recent results and perspectives concerning nanomagnets prepared from clusters preformed in the gas phase using the Low Energy Cluster Beam Deposition (LECBD) technique. In this paper, we focus our attention on the typical case of Co clusters embedded in various matrices to study interface magnetic anisotropy and magnetic interactions as a function of volume concentrations, and on still current and perspectives through two examples of binary metallic 3d-5d TM (namely CoPt and FeAu) clusters assemblies to illustrate size-related and nanoalloy phenomena on magnetic properties in well-defined mass-selected clusters. The structural and magnetic properties of these cluster assemblies were investigated using various experimental techniques that include High Resolution Transmission Electron Microscopy (HRTEM), Superconducting Quantum Interference Device (SQUID) magnetometry, as well as synchrotron techniques such as Extended X-Ray Absorption Fine Structure (EXAFS) and X-Ray Magnetic Circular Dichroism (XMCD). Depending on the chemical nature of both NPs and matrix, we observe different magnetic responses compared to their bulk counterparts. In particular, we show how finite size effects (size reduction) enhance their magnetic moment and how specific relaxation in nanoalloys can impact their magnetic anisotropy. |
| Databáze: | OpenAIRE |
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