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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Encinas, Armando
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Bistable magnetic nanowires: A new approach to non-volatile memory with single readout and automatic deletioncitations
- 20173-D Interconnected Magnetic Nanofiber Networks With Multifunctional Propertiescitations
- 2016Interplay between the magnetic and magneto-transport properties of 3D interconnected nanowire networkscitations
- 2015Artificially modified magnetic anisotropy in interconnected nanowire networkscitations
- 2014Supramolecular assemblies of nucleoside functionalized carbon nanotubes: Synthesis, film preparation, and propertiescitations
- 2014Supramolecular Assemblies of Nucleoside Functionalized Carbon Nanotubes: Synthesis, Film Preparation, and Propertiescitations
- 2013Influence of the packing fraction and host matrix on the magnetoelastic anisotropy in Ni nanowire composite arrayscitations
- 2003Quantum conductance in electrodeposited nanocontacts and magnetoresistance measurementscitations
- 2002Conductance quantization in magnetic nanowires electrodeposited in nanoporescitations
- 2002Tunable remanent state resonance frequency in arrays of magnetic nanowirescitations
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article
Influence of the packing fraction and host matrix on the magnetoelastic anisotropy in Ni nanowire composite arrays
Abstract
The influence of the packing fraction on thermally induced magnetoelastic effects has been studied in Ni nanowires embedded in polycarbonate, poly(vinylidene difluoride), and alumina nanoporous membranes of different porosities for temperatures between 77 K and 345 K. For nanowires embedded in polymer membranes, the contrasting shift in the ferromagnetic resonance frequency when the temperature is either above or below ambient temperature is consistent with the occurrence of uniaxial magnetoelastic anisotropy effects due to the large thermal expansion coefficient mismatch between the metal nanowires and the membrane. A model which considers the influence of the nanowires packing fraction and the membrane material on the magnetoelastic effects, arising from the matrix-assisted deformation process, is proposed. The model is able to successfully explain the experimentally observed effects for the Ni nanowire arrays embedded in the different porous membranes and their variation with the packing fraction. The possibility to modulate the magnetic anisotropy of such nanocomposites by an appropriate choice of membrane material, packing fraction, and sample temperature is of considerable importance to achieve magnetically tunable devices....