Eloi Haltz
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View article: Phase coexistence and transitions between antiferromagnetic and ferromagnetic states in a synthetic antiferromagnet
Phase coexistence and transitions between antiferromagnetic and ferromagnetic states in a synthetic antiferromagnet Open
In synthetic antiferromagnets (SAFs), antiferromagnetic (AFM) order and synthesis using conventional sputtering techniques is combined to produce systems that are advantageous for spintronics applications. Here we present the preparation a…
View article: Dynamics of bistable Néel domain walls under spin-orbit torque
Dynamics of bistable Néel domain walls under spin-orbit torque Open
Néel magnetic domain walls that are stabilized by achiral energy terms instead of the usual Dzyaloshinskii-Moriya interaction will be bistable, with the two possible chiral forms being degenerate. Here we focus on the theoretical study of …
View article: Phase Coexistence and Transitions between Antiferromagnetic and Ferromagnetic States in a Synthetic Antiferromagnet
Phase Coexistence and Transitions between Antiferromagnetic and Ferromagnetic States in a Synthetic Antiferromagnet Open
In synthetic antiferromagnets (SAFs) the combination of antiferromagnetic order and synthesis using conventional sputtering techniques is combined to produce systems that are advantageous for spintronics applications. Here we present the p…
View article: Statics and Dynamics of Skyrmions in Balanced and Unbalanced Synthetic Antiferromagnets
Statics and Dynamics of Skyrmions in Balanced and Unbalanced Synthetic Antiferromagnets Open
Synthetic antiferromagnets have great potential as skyrmion carriers in which new properties are expected for these spin textures, owing to changed magnetostatics and the absence of net topological charge. Here we numerically simulate the …
View article: Domain wall motion at low current density in a synthetic antiferromagnet nanowire
Domain wall motion at low current density in a synthetic antiferromagnet nanowire Open
The current-driven motion of magnetic domain walls (DWs) is the working principle of magnetic racetrack memories. In this type of spintronic technology, high current densities are used to propel DW motion in magnetic nanowires, causing sig…
View article: Breathing modes of skyrmion strings in a synthetic antiferromagnet multilayer
Breathing modes of skyrmion strings in a synthetic antiferromagnet multilayer Open
Skyrmions are small topologically protected magnetic structures that hold promise for applications from data storage to neuromorphic computing and they have been shown to possess internal microwave frequency excitations. Skyrmions in a syn…
View article: Dynamics of bistable Néel domain walls under spin-orbit torque
Dynamics of bistable Néel domain walls under spin-orbit torque Open
Néel magnetic domain walls that are stabilized by achiral energy terms instead of the usual Dzyaloshinskii-Moriya interaction will be bistable, with the two possible chiral forms being degenerate. Here we focus on the theoretical study of …
View article: Size-dependent mobility of skyrmions beyond pinning in ferrimagnetic GdCo thin films
Size-dependent mobility of skyrmions beyond pinning in ferrimagnetic GdCo thin films Open
Magnetic skyrmions are swirling magnetic textures that can be efficiently driven with spin-orbit torques with a deflected trajectory. However, pinning slows skyrmions down and alters their trajectory, which prevents a quantitative comparis…
View article: Domain wall motion at low current density in a synthetic antiferromagnet nanowire
Domain wall motion at low current density in a synthetic antiferromagnet nanowire Open
The current-driven motion of magnetic domain walls (DWs) is the working principle of magnetic racetrack memories. In this type of spintronic technology, high current densities are used to propel DW motion in magnetic nanowires, causing sig…
View article: Quantitative analysis of spin wave dynamics in ferrimagnets across compensation points
Quantitative analysis of spin wave dynamics in ferrimagnets across compensation points Open
International audience
View article: Breathing Modes of Skyrmion Strings in a Synthetic Antiferromagnet
Breathing Modes of Skyrmion Strings in a Synthetic Antiferromagnet Open
Skyrmions are small topologically protected magnetic structures that hold promise for applications from data storage to neuromorphic computing and they have been shown to possess internal microwave frequency excitations. Skyrmions in a syn…
View article: Domain wall dynamics in antiferromagnetically coupled double-lattice systems
Domain wall dynamics in antiferromagnetically coupled double-lattice systems Open
In ferromagnetic materials, the rich dynamics of magnetic domain walls (DWs)\nunder magnetic field or current have been successfully described using the\nwell-known q-{\\phi} analytical model. We demonstrate here that this simple\nunidimen…
View article: Making spin-orbit coupling visible in single layer ferrimagnets: direct observation of spin-orbit torques and chiral spin textures
Making spin-orbit coupling visible in single layer ferrimagnets: direct observation of spin-orbit torques and chiral spin textures Open
We demonstrate that effects of spin-orbit coupling and inversion asymmetry, spin-orbit torques (SOTs), Dzyaloshinskii-Moriya interaction (DMI) and chiral magnetism, can co-exist in a single layer ferrimagnetic GdFeCo without any heavy meta…
View article: Strong current actions on ferrimagnetic domain walls in the creep regime
Strong current actions on ferrimagnetic domain walls in the creep regime Open
International audience
View article: Deviations from bulk behavior in TbFe(Co) thin films: Interfaces contribution in the biased composition
Deviations from bulk behavior in TbFe(Co) thin films: Interfaces contribution in the biased composition Open
Ferrimagnetic TbFe or TbFeCo amorphous alloy thin films have been grown by\nco-evaporation in ultra-high vacuum. They exhibit an out-of-plane magnetic\nanisotropy up to their Curie temperature with a nucleation and propagation\nreversal me…
View article: Role of interfaces in the biased composition of TbFe(Co) thin films
Role of interfaces in the biased composition of TbFe(Co) thin films Open
Ferrimagnetic TbFe or TbFeCo amorphous alloy thin films have been grown by co-evaporation in ultra-high vacuum. They exhibit an out-of-plane magnetic anisotropy up to their Curie temperature with a nucleation and propagation reversal mecha…