Nader Yaacoub
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View article: Correction to “Hardening of Cobalt Ferrite Nanoparticles by Local Crystal Strain Release: Implications for Rare Earth Free Magnets”
Correction to “Hardening of Cobalt Ferrite Nanoparticles by Local Crystal Strain Release: Implications for Rare Earth Free Magnets” Open
[This corrects the article DOI: 10.1021/acsanm.2c03161.].
View article: Proximity effects, exchange bias and magnetic relaxation in γ-Fe <sub>2</sub> O <sub>3</sub> nanoparticles
Proximity effects, exchange bias and magnetic relaxation in γ-Fe <sub>2</sub> O <sub>3</sub> nanoparticles Open
Carbon-encapsulated γ-Fe 2 O 3 nanoparticles (NPs) exhibit emerging magnetic proximity effects together with a robust exchange-bias.
View article: Engineering hard ferrite composites by combining nanostructuring and Al3+ Substitution: From nano to dense bulk magnets
Engineering hard ferrite composites by combining nanostructuring and Al3+ Substitution: From nano to dense bulk magnets Open
View article: Chemical engineering of cationic distribution in spinel ferrite nanoparticles: the effect on the magnetic properties
Chemical engineering of cationic distribution in spinel ferrite nanoparticles: the effect on the magnetic properties Open
A set of ∼9 nm CoFe 2 O 4 nanoparticles substituted with Zn 2+ and Ni 2+ was prepared by thermal decomposition of metallic acetylacetonate precursors to correlate the effects of the replacement of Co 2+ with the resulting magnetic properti…
View article: Unraveling Exchange Coupling in Ferrites Nano‐Heterostructures
Unraveling Exchange Coupling in Ferrites Nano‐Heterostructures Open
The magnetic coupling of a set of SrFe 12 O 19 /CoFe 2 O 4 nanocomposites is investigated. Advanced electron microscopy evidences the structural coherence and texture at the interfaces of the nanostructures. The fraction of the lower aniso…
View article: Facile and fast synthesis of highly ordered L10-FeNi nanoparticles
Facile and fast synthesis of highly ordered L10-FeNi nanoparticles Open
The chemically ordered L10-FeNi alloy is a promising candidate for next generation rare-earth-free permanent magnets, which can revolutionize the high-performance magnets market currently dominated by Nd-Fe-B. Despite many efforts, the exp…
View article: Facile and Fast Synthesis of Highly Ordered L1<sub>0</sub>-Feni Nanoparticles
Facile and Fast Synthesis of Highly Ordered L1<sub>0</sub>-Feni Nanoparticles Open
View article: Tunable particle-agglomeration and magnetic coupling in bi-magnetic nanocomposites
Tunable particle-agglomeration and magnetic coupling in bi-magnetic nanocomposites Open
We propose an efficient way to synthesize strongly magnetically coupled nanocomposites, where the final extrinsic properties could be tuned by controlling the agglomeration of Co–Zn-ferrite nanoparticles in the Sr ferrite matrix and their …
View article: The Boundary Between Volume and Surface-Driven Magnetic Properties in Spinel Iron Oxide Nanoparticles
The Boundary Between Volume and Surface-Driven Magnetic Properties in Spinel Iron Oxide Nanoparticles Open
Despite modern preparation techniques offer the opportunity to tailor the composition, size, and shape of magnetic nanoparticles, understanding and hence controlling the magnetic properties of such entities remains a challenging task, due …
View article: Hardening of Cobalt Ferrite Nanoparticles by Local Crystal Strain Release: Implications for Rare Earth Free Magnets
Hardening of Cobalt Ferrite Nanoparticles by Local Crystal Strain Release: Implications for Rare Earth Free Magnets Open
In this work, we demonstrate that the reduction of the local internal stress by a low-temperature solvent-mediated thermal treatment is an effective post-treatment tool for magnetic hardening of chemically synthesized nanoparticles. As a c…
View article: Polyol-Made Spinel Ferrite Nanoparticles—Local Structure and Operating Conditions: NiFe2O4 as a Case Study
Polyol-Made Spinel Ferrite Nanoparticles—Local Structure and Operating Conditions: NiFe2O4 as a Case Study Open
We report the effect of a polyol-mediated annealing on nickel ferrite nanoparticles. By combining X-ray fluorescence spectroscopy, X-ray diffraction, and 57 Fe Mössbauer spectrometry, we showed that whereas the as-prepared nanoparticles (N…
View article: Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere
Spinel Iron Oxide by the Co-Precipitation Method: Effect of the Reaction Atmosphere Open
Synthesis atmosphere (i.e., air and nitrogen) effects on the physical properties and formation mechanism of spinel iron oxide nanoparticles prepared via the co-precipitation method have been investigated using a multi-technique approach. T…
View article: Hybrid Spinel Iron Oxide Nanoarchitecture Combining Crystalline and Amorphous Parent Material
Hybrid Spinel Iron Oxide Nanoarchitecture Combining Crystalline and Amorphous Parent Material Open
When preparing nanostructured magnetic materials, the presence of an amorphous component is often considered a weakness of the synthesis method and a waste of material. This stems because the amorphous fraction is often pictured as a "dead…
View article: Memory and superposition in a superspin glass
Memory and superposition in a superspin glass Open
View article: Optimizing the magnetic properties of hard and soft materials for producing exchange spring permanent magnets
Optimizing the magnetic properties of hard and soft materials for producing exchange spring permanent magnets Open
The exploitation of the exchange coupling between hard and soft magnetic materials has been proposed for enhancing the magnetic performances of rare-earth free permanent magnets, with the aim of extending their use to all applications wher…
View article: On the first evidence of exchange-bias feature in magnetically contrasted consolidates made from CoFe2O4-CoO core-shell nanoparticles
On the first evidence of exchange-bias feature in magnetically contrasted consolidates made from CoFe2O4-CoO core-shell nanoparticles Open
View article: Optimising the magnetic performance of Co ferrite nanoparticles <i>via</i> organic ligand capping
Optimising the magnetic performance of Co ferrite nanoparticles <i>via</i> organic ligand capping Open
Optimising the magnetic properties of CoFe2O4 nanoparticles by selecting the appropriate coating in a ligand exchange process.
View article: Remanence Plots as a Probe of Spin Disorder in Magnetic Nanoparticles
Remanence Plots as a Probe of Spin Disorder in Magnetic Nanoparticles Open
Remanence magnetization plots (e.g., Henkel or δM plots) have been extensively used as a straightforward way to determine the presence and intensity of dipolar and exchange interactions in assemblies of magnetic nanoparticles or single dom…
View article: Gold–iron oxide dimers for magnetic hyperthermia: the key role of chloride ions in the synthesis to boost the heating efficiency
Gold–iron oxide dimers for magnetic hyperthermia: the key role of chloride ions in the synthesis to boost the heating efficiency Open
To produce Au–FexOy dimers with outstanding heating performances under clinical magnetic hyperthermia conditions, here we report two synthesis routes, a two-pot and a one-pot method.
View article: Enhancing the magnetic anisotropy of maghemite nanoparticles via the surface coordination of molecular complexes
Enhancing the magnetic anisotropy of maghemite nanoparticles via the surface coordination of molecular complexes Open
Superparamagnetic nanoparticles are promising objects for data storage or medical applications. In the smallest—and more attractive—systems, the properties are governed by the magnetic anisotropy. Here we report a molecule-based synthetic …
View article: Modeling of hysteresis loops by Monte Carlo simulation
Modeling of hysteresis loops by Monte Carlo simulation Open
Recent advances in MC simulations of magnetic properties are rather devoted to non-interacting systems or ultrafast phenomena, while the modeling of quasi-static hysteresis loops of an assembly of spins with strong internal exchange intera…
View article: Grafting of diazonium salts on oxides surface: formation of aryl-O bonds on iron oxide nanoparticles
Grafting of diazonium salts on oxides surface: formation of aryl-O bonds on iron oxide nanoparticles Open