85 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR11 papers
- Université Joseph FourierFR5 papers
- Forschungszentrum JülichDE4 papers
- Institut FourierFR3 papers
- Technical University of MunichDE3 papers
- Université de LorraineFR3 papers
- University of Sciences and Technology Houari BoumedieneDZ3 papers
- Institut Charles SadronFR2 papers
- Institut de PhysiqueFR2 papers
- Institut NéelFR2 papers
- Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux ComplexesFR2 papers
- Laboratoire de Mathématiques Raphaël SalemFR2 papers
26 papers
Ab-initio exploration of Gd monolayer interfaced with WSe: from electronic and magnetic properties to the anomalous Hall effect
Lyes Mesbahi, Omar Messaoudi, Hamid Bouzar +1
Heterostructures involving transition metal dichalcogenides (TMDs) have attracted significant research interest due to the richness and versatility of the underlying physical pheno…
New approach for the incoherent and coherent combination of Gaussian laser beams and observation of the spatial thinning of the combined beams by modes phase locking
Hocine Djellout, Djillali Djellout
We report a new configuration and theoretical approach for the study of the incoherent and coherent combination of Gaussian laser beams which allows us to calculate the combined in…
Existence Result For a Model Coupling a Quasi-Linear Parabolic Equation and a Linear Hyperbolic System
Djamal Ait-Akli
We prove globally-in-time existence of solution for a problem coupling the linear Lamé system and the quasi-linear Stokes equation. A solution of this global coupled problem is vie…
Structural behaviour of BiFeO3/SrRuO3 superlattices: an X-ray diffraction and Raman spectroscopy investigation
S. Yousfi, M. El Marssi, H. Bouyanfif
Epitaxial BiFeO3/SrRuO3 superlattices have been grown by pulsed laser deposition on a (001) oriented LaAlO3 substrate and probed by X-ray diffraction and Raman spectroscopy. To inv…
Impedance spectroscopy and conduction mechanism of a BiFeMnO thin film
S. Yousfi, M. El Marssi, H. Bouyanfif
Dielectric response and conduction mechanism were investigated for a multiferroic BiFeMnO epitaxial thin film. A contribution from a thermally activated inter…
Half-wave plate based on a birefringent metamaterial in the visible range
Thinhinane Zeghdoudi, Zahia Kebci, Abdelaziz Mezeghrane +2
In the present paper, a half-wave plate (HWP) based on a birefringent metamaterial is numerically designed to operate in the visible range. The proposed structure consists of an ar…
Impact of single atomic defects and vacancies on the magnetic anisotropy energy of CoPt thin films
Samy Brahimi, Hamid Bouzar, Samir Lounis
The impact of surface vacancies and single adatoms on the magnetic properties of tetragonal {\bf{L1}} CoPt thin films is investigated from first principles. We consider Co an…
On a finite trigonometric sum related to Dedekind sum
Mouloud Goubi
Finite trigonometric sums appear in various branches of Physics, Mathematics and their applications. For p; q to coprime positive integers and r we consider the finite trigonometri…
Weyl almost periodic solutions to abstract linear and semilinear equations with Weyl almost periodic coefficients
Fazia Bedouhene, Youcef Ibaouene, Omar Mellah +1
In this work, we study the existence and uniqueness of bounded Weyl almost periodic solution to the abstract differential equation u ' (t) = Au(t) + f (t), t R, in a Banach s…
Non-degenerate valleys in the half-metallic ferromagnet Fe/WS
Omar Messaoudi, Julen Ibañez-Azpiroz, Hamid Bouzar +1
We present a first principles investigation of the electronic properties of monolayer WS coated with an overlayer of Fe. Our ab initio calculations reveal that the system is a…
Almost periodic solution in distribution for stochastic differential equations with Stepanov almost periodic coefficients
Fazia Bedouhene, Nouredine Challali, Omar Mellah +2
This paper deals with the existence and uniqueness of (-pseudo) almost periodic mild solution to some evolution equations with Stepanov (-pseudo) almost periodic coefficients…
Chiral magnetism of magnetic adatoms generated by Rashba electrons
Juba Bouaziz, Manuel dos Santos Dias, Abdelhamid Ziane +3
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…
Giant perpendicular magnetic anisotropy energies in CoPt thin films: Impact of reduced dimensionality and imperfections
Samy Brahimi, Hamid Bouzar, Samir Lounis
The impact of reduced dimensionality on the magnetic properties of the tetragonal L1 CoPt alloy is investigated from ab-initio considering several kinds of surface defects. B…
Squeezed Helical Elastica
Lila Bouzar, Martin Michael Müller, Pierre Gosselin +2
We theoretically study the conformations of a helical semi-flexible filament confined to a flat surface. This squeezed helix exhibits a variety of unexpected shapes resembling circ…
Toroidal membrane vesicles in spherical confinement
Lila Bouzar, Ferhat Menas, Martin Michael Müller
We investigate the morphology of a toroidal fluid membrane vesicle confined inside a spherical container. The equilibrium shapes are assembled in a geometrical phase diagram as a f…
Experimental study of ultracold neutron production in pressurized superfluid helium
P. Schmidt-Wellenburg, J. Bossy, E. Farhi +5
We have investigated experimentally the pressure dependence of the production of ultracold neutrons (UCN) in superfluid helium in the range from saturated vapor pressure to 20bar.…
Quantization of soluble classical constrained systems
Zahir Belhadi, Ferhat Ménas, Alain Bérard +1
The derivation of the brackets among coordinates and momenta for classical constrained systems is a necessary step toward their quantization. Here we present a new approach for the…
Optimal consumption and investment for markets with random coefficients
Berdjane Belkacem, Serguei Pergamenchtchikov
We consider an optimal investment and consumption problem for a Black-Scholes financial market with stochastic coefficients driven by a diffusion process. We assume that an agent m…
Momentum Distribution and Renormalization Factor in Sodium and the Electron Gas
Simo Huotari, J. Aleksi Soininen, Tuomas Pylkkänen +9
We present experimental and theoretical results on the momentum distribution and the quasiparticle renormalization factor in sodium. From an x-ray Compton-profile measurement of th…
Semiclassical quantization of electrons in magnetic fields: the generalized Peierls substitution
Pierre Gosselin, Hocine Boumrar, Herve Mohrbach
A generalized Peierls substitution which takes into account a Berry phase term must be considered for the semiclassical treatment of electrons in a magnetic field. This substitutio…
Monte Carlo simulations of the L10 long-range order relaxation in dimensionally reduced systems
Mohammed Allalen, Tarik Mehaddene, Hamid Bouzar
Monte Carlo simulations have been performed to investigate the relaxation of the L10 long-range order in dimensionally reduced systems. The effect of the number of (001)-type monat…
From Feynman Proof of Maxwell Equations to Noncommutative Quantum Mechanics
A. Bérard, H. Mohrbach, J. Lages +4
In 1990, Dyson published a proof due to Feynman of the Maxwell equations assuming only the commutation relations between position and velocity. With this minimal assumption, Feynma…
Inverse problem and Bertrand's theorem
Yves Grandati, Alain Bérard, Ferhat Menas
The Bertrand's theorem can be formulated as the solution of an inverse problem for a classical unidimensional motion. We show that the solutions of these problems, if restricted to…
Semiclassical Dynamics of Electrons in Magnetic Bloch Bands: a Hamiltonian Approach
Pierre Gosselin, Fehrat Ménas, Alain Bérard +1
y formally diagonalizing with accuracy the Hamiltonian of electrons in a crystal subject to electromagnetic perturbations, we resolve the debate on the Hamiltonian nature o…