544 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Université de LorraineFR42 papers
- Centre National de la Recherche ScientifiqueFR20 papers
- Institut Charles SadronFR13 papers
- Université de StrasbourgFR6 papers
- Institute of PhysicsPL5 papers
- Kyrgyz-Russian Slavic University named after B.N. YeltsinKG5 papers
- Laboratoire Matériaux, Optique, Photonique et SystèmesFR4 papers
- Nicolaus Copernicus UniversityPL4 papers
- Polish Academy of SciencesPL4 papers
- Dalhousie UniversityCA2 papers
- Institut de minéralogie, de physique des matériaux et de cosmochimieFR2 papers
- Institute of Physics BelgradeRS2 papers
43 papers
On inequalities of shear modulus contributions in disordered elastic bodies
J. P. Wittmer, H. Xu
We investigate generic inequalities of various contributions to the shear modulus in ensembles of amorphous elastic bodies. We focus first on a simple elastic network model wit…
Terahertz-to-infrared converters for imaging the human skin cancer: challenges and feasibility
Kamil Moldosanov, Alexander Bykov, Nurlanbek Kairyev +6
Purpose: The terahertz (THz) medical imaging is a promising noninvasive technique for monitoring the skin's conditions, early detection of the human skin cancer, and recovery from…
First-principles study of hydrogen dynamics in monoclinic TiO
S. Vahid Hosseini, Andrei Postnikov, Mohammad Reza Mohammadizadeh
The existence of intrinsic vacancies in cubic (monoclinic) TiO suggests opportunity for hydrogen absorption, which was addressed in recent experiments. In the present work, based o…
One-Step Formation of Plasmonic Cu Nanodomains in p-Type CuO Matrix Films for Enhanced Photoconversion of n-ZnO/p-CuO Heterojunctions
Yerila Rodríguez-Martínez, Lídice Vaillant-Roca, Jaafar Ghanbaja +4
Plasmonic Cu nanoparticles were in-situ grown into a CuO semiconductor matrix by using reactive magnetron sputtering and adjusting the amount of oxygen available during the syn…
Calculation of the ground-state Stark effect in small molecules using the variational quantum eigensolver
Carlos Tavares, Sofia Oliveira, Vitor Fernandes +2
As quantum computing approaches its first commercial implementations, quantum simulation emerges as a potentially ground-breaking technology for several domains, including Biology…
Theoretical mapping of interaction between alkali metal atoms adsorbed on graphene-like BC3 monolayer
Kazem Zhour, Andrei Postnikov
First-principles calculations using density functional theory and two methods in comparison, Quantum ESPRESSO and Siesta, are done on large supercells which describe different plac…
Phonon-based partition of (ZnSe-like) semiconductor mixed crystals on approach to their pressure-induced structural transition
M. B. Shoker, O. Pagès, V. J. B. Torres +10
The generic 1-bond:2-mode percolation type Raman signal inherent to the short bond of common (A,B)C semiconductor mixed crystals with zincblende (cubic) structure is exploited as a…
SIESTA: recent developments and applications
Alberto García, Nick Papior, Arsalan Akhtar +33
A review of the present status, recent enhancements, and applicability of the SIESTA program is presented. Since its debut in the mid-nineties, SIESTA's flexibility, efficiency and…
Prospects of designing gold-nanoparticles-based soft terahertz radiation sources and terahertz-to-infrared converters for concealed object detection technology
K. A. Moldosanov, A. V. Postnikov, V. M. Lelevkin +1
The two-phonon scheme of generation of terahertz (THz) photons by gold nanobars (GNBs) is considered. It is shown that in GNBs, by choosing their sizes, it is possible to provide c…
Comparative study of structural and electronic properties of GaSe and InSe polytypes
Juliana Srour, Michael Badawi, Fouad El Haj Hassan +1
Equilibrium crystal structures, electron band dispersions and band gap values of layered GaSe and InSe semiconductors, each being represented by four polytypes, are studied via fir…
Suggested design of gold-nanoobjects-based terahertz radiation source for biomedical research
A. V. Postnikov, K. A. Moldosanov
Gold nanoparticles (GNPs) may serve as "devices" to emit electromagnetic radiation in the terahertz (THz) range, whereby the energy is delivered by radio frequency or microwave pho…
Competing Structures in (In,Ga)Se and (In,Ga)2Se3 Semiconductors
J. Srour, A. Postnikov, M. Badawi +1
The electronic structure of four polytypes (beta, gamma, delta and epsilon) of hexagonal GaSe and InSe is calculated from first principles, using the WIEN2k and VASP codes and PBEs…
Shear-stress fluctuations in self-assembled transient elastic networks
J. P. Wittmer, I. Kriuchevskyi, A. Cavallo +2
Focusing on shear-stress fluctuations we investigate numerically a simple generic model for self-assembled transient networks formed by repulsive beads reversibly bridged by ideal…
Near-forward Raman selection rules of the phonon-polariton created by alloying in (Zn,Be)Se
H. Dicko, O. Pages, F. Firszt +5
The Raman selection rules of the (ZnSe, BeSe) mixed phonon polariton created by alloying in the three mode (1ZnSe, 2BeSe) ZnBeSe system, whose dramatic S like dispersion covers the…
Pressure-induced phonon freezing in the ZnSeS II-VI mixed crystal: phonon-polaritons and ab initio calculations
R. Hajj Hussein, O. Pages, A. Polian +8
Near-forward Raman scattering combined with ab initio phonon and bond length calculations is used to study the phonon-polariton transverse optical modes (with mixed electrical and…
SWKB and proper quantization conditions for translationally shape invariant potentials
Kamal Mahdi, Y Kasri, Y Grandati +1
Using a recently proposed classification for the primary translationally shape invariant potentials, we show that the exact quantization rule formulated by Ma and Xu is equivalent…
Self-Assembly of Magnetic Spheres in Strong Homogeneous Magnetic Field
René Messina, Igor Stanković
The self-assembly in two dimensions of spherical magnets in strong magnetic field is addressed theoretically. %% It is shown that the attraction and assembly of parallel magnetic c…
A THz-Vibration to THz-Radiation Converter Based on Gold Nanoobjects: a Feasibility Study
Kamil Moldosanov, Andrei Postnikov
The estimations done confirm a feasibility of the idea that gold nanobars (GNBs) and nanorings (GNRs) irradiated by microwaves could become the terahertz (THz) emitters with photon…
Simple-average expressions for shear-stress relaxation modulus
J. P. Wittmer, H. Xu, J. Baschnagel
Focusing on isotropic elastic networks we propose a novel simple-average expression for the computational determination of the shear-stress relaxation modulus $…
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…
Fluctuation-dissipation relation between shear stress relaxation modulus and shear stress autocorrelation function revisited
J. P. Wittmer, H. Xu, O. Benzerara +1
The shear stress relaxation modulus may be determined from the shear stress after switching on a tiny step strain or by inverse Fourier transformation of the stor…
Shear stress relaxation and ensemble transformation of shear stress autocorrelation functions revisited
J. P. Wittmer, H. Xu, J. Baschnagel
We revisit the relation between the shear stress relaxation modulus , computed at finite shear strain , and the shear stress autocorrelation functions a…
Shear-strain and shear-stress fluctuations in generalized Gaussian ensemble simulations of isotropic elastic networks
J. P. Wittmer, I. Kriuchevskyi, J. Baschnagel +1
Shear-strain and shear-stress correlations in isotropic elastic bodies are investigated both theoretically and numerically at either imposed mean shear-stress () or shear-…
Phonon-assisted radiofrequency absorption by gold nanoparticles resulting in hyperthermia
Andrei Postnikov, Kamil Moldosanov
It is suggested that in gold nanoparticles (GNPs) of about 5 nm sizes used in the radiofrequency (RF) hyperthermia, an absorption of the RF photon by the Fermi electron occurs with…