| People | Locations | Statistics |
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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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Hübner, René
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Room-temperature extended short-wave infrared GeSn photodetectors realized by ion beam techniquescitations
- 2023Structural investigations of Au–Ni aerogels: morphology and element distributioncitations
- 2023Bottom-up fabrication of FeSb2 nanowires on crystalline GaAs substrates with ion-induced pre-patterning
- 2022Defect Nanostructure and its Impact on Magnetism of α-Cr2O3 thin filmscitations
- 2022Flexomagnetism and vertically graded Néel temperature of antiferromagnetic Cr2O3 thin films
- 2022Homogenization and short-range chemical ordering of Co–Pt alloys driven by the grain boundary migration mechanismcitations
- 2022Band-gap and strain engineering in GeSn alloys using post-growth pulsed laser melting
- 2022Self-Supported Three-Dimensional Quantum Dot Aerogels as a Promising Photocatalyst for CO2 Reduction
- 2021Controlled Silicidation of Silicon Nanowires Using Flash Lamp Annealingcitations
- 2020Increasing the Diversity and Understanding of Semiconductor Nanoplatelets by Colloidal Atomic Layer Deposition
- 2020Formation of Thin NiGe Films by Magnetron Sputtering and Flash Lamp Annealingcitations
- 2020Directionality of metal-induced crystallization and layer exchange in amorphous carbon/nickel thin film stackscitations
- 2020Tunable magnetic vortex dynamics in ion-implanted permalloy diskscitations
- 2019Specific ion effects directed noble metal aerogels: Versatile manipulation for electrocatalysis and beyondcitations
- 2019Structure-property relationship of Co 2 MnSi thin films in response to He + -irradiation
- 2018Percolated Si:SiO2 Nanocomposites: Oven- vs. Millisecond Laser-Induced Crystallization of SiOx Thin Filmscitations
- 2018Nematicity of correlated systems driven by anisotropic chemical phase separationcitations
- 2018Core–Shell Structuring of Pure Metallic Aerogels towards Highly Efficient Platinum Utilization for the Oxygen Reduction Reactioncitations
- 2017Interplay between localization and magnetism in (Ga,Mn)As and (In,Mn)As
- 2017Purely antiferromagnetic magnetoelectric random access memory
- 2016Bonding structure and morphology of chromium oxide films grown by pulsed-DC reactive magnetron sputter depositioncitations
- 2016Carbon : nickel nanocomposite templates - predefined stable catalysts for diameter-controlled growth of single-walled carbon nanotubescitations
- 2013Forming-free resistive switching in multiferroic BiFeO3 thin films with enhanced nanoscale shuntscitations
- 2005Focussing and defocussing effects at radio frequency glow discharge optical emission spectroscopy analyses of thin films with partly nonconductive componentscitations
- 2002Crystallisation of caesium borosilicate glasses with approximate boroleucite compositioncitations
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article
Homogenization and short-range chemical ordering of Co–Pt alloys driven by the grain boundary migration mechanism
Abstract
<jats:title>Abstract</jats:title><jats:p>Binary magnetic alloys like Co–Pt are relevant for applications as components of magnetic exchange coupled composites. Numerous approaches exist to tune the coercive field of Co–Pt alloys primarily relying on high-temperature processing aiming to realize chemically long-range ordered phases. The peculiarity of Co–Pt is that large coercive field and magnetic anisotropy can be achieved even in chemically disordered alloys relying on short-range order. Here, we study alloying of Co–Pt from bilayers of Pt(14 nm)/Co(13 nm) at temperatures up to 550 °С, where bulk diffusion processes are suppressed and the dominant diffusion mechanism is grain boundary migration. We demonstrate that grain boundary diffusion mechanism can lead to the realization of a homogeneous yet chemically disordered Co<jats:sub>56</jats:sub>Pt<jats:sub>44</jats:sub> alloy at temperatures of 500 °С and higher. A pronounced increase of the coercive field for samples processed at temperatures higher than 400 °С is attributed to short-range ordering. With this work, we pinpoint the grain boundary diffusion as the mechanism responsible not only for the homogenization of binary alloy films but also as a driving force for the realization of short-range order in Co–Pt. Our results motivate further research on grain boundary diffusion as a mechanism to realize chemically long-range ordered phases in Co–Pt alloys.</jats:p>