J. Bouaziz

Publications32
h-index8
Citations346
Highly Influential Citations3
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Perpendicular reading of single confined magnetic skyrmions
TLDR
A technique to detect isolated nanoskyrmions with a current perpendicular-to-plane geometry, which has immediate implications for device concepts and the physics behind such a mechanism is explored by studying the atomistic electronic structure of the magnetic quasiparticles.
Universality of defect-skyrmion interaction profiles
TLDR
From first-principles, the energy profile of single skyrmions interacting with single-atom impurities is mapped, establishing a generic shape as function of the defect’s electron filling and revealing its universal shape originated from the defect's electron filling.
Topological–chiral magnetic interactions driven by emergent orbital magnetism
TLDR
It is shown that Ampère’s observation can be transferred to the quantum realm of interactions between triangular plaquettes of spins on a lattice, where the electrical currents at the atomic scale are associated with the orbital motion of electrons in response to the non-coplanarity of neighbouring spins playing the role of a magnetic field.
Chirality-driven orbital magnetic moments as a new probe for topological magnetic structures
TLDR
The orbital magnetism of skyrmions is studied and it is demonstrated that the contribution driven by the emergent magnetic field is topological, which means that the topological contribution to the orbital moment does not change under continuous deformations of the magnetic structure.
Spin-resolved inelastic electron scattering by spin waves in noncollinear magnets
Topological non-collinear magnetic phases of matter are at the heart of many proposals for future information nanotechnology, with novel device concepts based on ultra-thin films and nanowires. Their…
Magnetism and in-gap states of 3d transition metal atoms on superconducting Re
Magnetic atoms on heavy-element superconducting substrates are potential building blocks for realizing topological superconductivity in one- and two-dimensional atomic arrays. Their localized…
Chiral magnetism of magnetic adatoms generated by Rashba electrons
We investigate long-range chiral magnetic interactions among adatoms mediated by surface states spin-splitted by spin-orbit coupling. Using the Rashba model, the tensor of exchange interactions is…
Dynamical amplification of magnetoresistances and Hall currents up to the THz regime
TLDR
This work considers Co/Pt and Fe/W bilayers to show that accounting for the phase difference between different processes is crucial to the correct description of the dynamical currents and reveals that dynamical spin Hall angles can non-trivially change sign and be boosted by over 500%, reaching giant values.
Ab initio investigation of impurity-induced in-gap states in Bi2Te3 and Bi2Se3
We investigate in-gap states emerging when a single $3d$ transition metal impurity is embedded in topological insulators (${\mathrm{Bi}}_{2}{\mathrm{Te}}_{3}$ and…
Transverse Transport in Two-Dimensional Relativistic Systems with Nontrivial Spin Textures.
TLDR
The generally accepted expression of transverse resistivity in magnetic systems that host skyrmions, given by the linear superposition of the ordinary, the anomalous, and the topological Hall effect, is incomplete and must be amended by an additional term, the "noncollinear" Hall effect (NHE).
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