AUB ScholarWorks

Browsing Department of Physics by Title

Browsing Department of Physics by Title

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  • Compositional effect on auto-oscillation behavior of Ni 100 - xFex/Pt spin Hall nano-oscillators 
    Haidar, Mohammad; Mazraati, Hamid; Dürrenfeld, Philipp; Fulara, Himanshu; Ranjbar, Mojtaba; Åkerman, Johan J. (American Institute of Physics Inc., 2021)
    We demonstrate the compositional effect on the magnetodynamic and auto-oscillation properties of Ni 100 - xFex/Pt (x = 10-40) nanoconstriction-based spin Hall nano-oscillators. Using spin-torque ferromagnetic resonance ...
  • Compression and interpenetration of adsorption-active brushes 
    Ivanova, Anna S.; Polotsky, Alexey A.; Skvortsov, Aleksander M.; Klushin, Leonid I.; Schmid, Friederike (American Institute of Physics Inc., 2023)
    Compression and interpenetration of two opposing polymer brushes formed by end-grafted adsorption-active chains are studied by the numerical self-consistent field approach and by analytical theory. For sufficiently strong ...
  • Cosmology with mimetic matter 
    Chamseddine, Ali H.; Mukhanov, Viatcheslav F.; Vikman, Alexander (Institute of Physics Publishing, 2014)
    We consider minimal extensions of the recently proposed Mimetic Dark Matter and show that by introducing a potential for the mimetic non-dynamical scalar field we can mimic nearly any gravitational properties of the normal ...
  • Crystalline phase control and growth selectivity of β-MnO2 thin films by remote plasma assisted pulsed laser deposition 
    Abi-Akl, Maya; Tabbal, Malek; Kassem, Wassim (Elsevier B.V., 2016)
    In this paper, we exploit the effect of coupling an oxygen remote plasma source to Pulsed Laser Deposition (PLD) for the growth of pure and well crystallized β-MnO2 films. Films were grown on Si substrates by laser ablation ...
  • Cumulative administrations of gadolinium-based contrast agents: risks of accumulation and toxicity of linear vs macrocyclic agents 
    Chehabeddine, Lara; Al Saleh, Tala; Baalbaki, Marwa M.; Saleh, Eman; Khoury, Samia J.; Hannoun, S. (Taylor and Francis Ltd, 2019)
    Ever since gadolinium was found to deposit in the brain of patients with normal kidney function by Kanda et al. in 2014, several studies have been conducted to evaluate its effect on the patients’ health. However, conflicting ...
  • Curvature tensor in discrete gravity 
    Chamseddine, Ali H.; Malaeb, O.; Najem, Sara A. (Institute for Ionics, 2023)
    We study numerically the curvature tensor in a three-dimensional discrete space. Starting from the continuous metric of a three-sphere, we transformed it into a discrete space using three integers n1, n2 , and n3 . The ...
  • Dependence of surface plasmon-phonon-polariton in 4 H-SiC on free carrier concentration 
    Karakachian, Hrag; Kazan, Michel (American Institute of Physics Inc., 2017)
    In this paper, we present a thorough study of the characteristics of the surface modes that result from coupling between plasmon electronic oscillation modes, phonon modes, and electromagnetic modes. The Fourier transform ...
  • Direct measurement of the effective infrared dielectric response of a highly doped semiconductor metamaterial 
    Mohtar, Abeer Al; Kazan, Michel; Taliercio, Thierry; Cerutti, Laurent; Blaize, Sylvain; Bruyant, Aurélien (Institute of Physics Publishing, 2017)
    We have investigated the effective dielectric response of a subwavelength grating made of highly doped semiconductors (HDS) excited in reflection, using numerical simulations and spectroscopic measurement. The studied ...
  • Direct numerical simulation of electromagnetically forced flows using OpenFOAM 
    Habchi, Charbel; Antar, Ghassan Y. (Elsevier Ltd, 2015)
    We present direct numerical simulation results of a conducting fluid subject to the Lorentz force resulting from an external static magnetic field normal to the electric current direction. This research discipline, generally ...
  • Discrete gravity 
    Chamseddine, Ali H.; Mukhanov, Viatcheslav F. (Springer Science and Business Media Deutschland GmbH, 2021)
    We assume that the points in volumes smaller than an elementary volume (which may have a Planck size) are indistinguishable in any physical experiment. This naturally leads to a picture of a discrete space with a finite ...
  • Effects of magnetic perturbation on reconnection and heating in the solar corona 
    Hammoud, Mostafa M.; Antar, Ghassan Y.; Dayeh, Maher M. A.; Darwish, Marwan S.; El-Eid, Mounib F. (IOP Publishing Ltd, 2020)
    The solar corona exhibits unusually high temperatures (∼106 K) compared to the photosphere (∼5800 K). This coronal heating is one of the fundamental problems in solar physics that has yet to be resolved. Magnetic reconnection ...
  • Enhancing LSPR Sensitivity of Au Gratings through Graphene Coupling to Au Film 
    Maurer, Thomas; Nicolas, Rana; Lévêque, Gaëtan; Subramanian, Palaniappan; Proust, Julien; Béal, Jérémie; Schuermans, Silvère; Vilcot, Jean Pierre; Herro, Ziad G.; Kazan, Michel; Plain, Jérôme; Boukherroub, Rabah; Akjouj, Abdellatif; Djafari-Rouhani, Bahram; Adam, Pierre Michel; Szunerits, Sabine (Springer New York LLC, 2014)
    A particular interesting plasmonic system is that of metallic nanostructures interacting with metal films. As the localized surface plasmon resonance (LSPR) behavior of gold nanostructures (Au NPs) on the top of a gold ...
  • Entropy and the Spectral Action 
    Chamseddine, Ali H.; Connes, Alain; van Suijlekom, Walter Daniël (Springer, 2020)
    We compute the information theoretic von Neumann entropy of the state associated to the fermionic second quantization of a spectral triple. We show that this entropy is given by the spectral action of the spectral triple ...
  • EPR Studies for GdBa2Cu3 O 7−δ Added with Nanosized Ferrite ZnFe2 O 4 Before and After Irradiation by 3 MeV H+ Ions 
    Isber, Samih; Basma, Hadi; Noureldeen, S.; Barakat, Mai M.E.; Roumié, Mohamad; Awad, Ramadan (Springer New York LLC, 2017)
    (ZnFe2O4)xGdBa2Cu3O7−δ superconducting samples, 0 ≤ x ≤ 0.40 wt%, were synthesized using a conventional solid-state reaction technique. The prepared samples were investigated using electron paramagnetic resonance (EPR) ...
  • Evidence of alloy formation in CoNi nanoparticles synthesized by nanosecond-pulsed discharges in liquid nitrogen 
    Trad, Mahmoud; Nominé, A. V.; Noël, Cédric; Ghanbaja, Jaâfar; Tabbal, Malek; Belmonte, Thierry (Wiley-VCH Verlag, 2020)
    Producing alloy nanoparticles by discharge-assisted erosion of electrodes immersed in liquid nitrogen is possible in the cobalt–nickel system. Several electrode configurations are tested. When one nickel electrode faces ...
  • Exploring masses and CNO surface abundances of red giant stars 
    Halabi, Ghina M.; El-Eid, Mounib F. (Oxford University Press, 2015)
    A grid of evolutionary sequences of stars in the mass range 1.2-7M⊙, with solar-like initial composition is presented. We focus on this mass range in order to estimate the masses and calculate the CNO surface abundances ...
  • Femtosecond laser irradiation of titanium oxide thin films: accumulation effect under IR beam 
    Talbi, Abderazek; Semmar, Nadjib; Tabbal, Malek; Connor, G. O.; Coddet, Pierre L.; Thomann, Anne Lise; Stolz, Arnaud; Leborgne, C.; Millon, Eric (Springer, 2020)
    This paper discusses the mechanisms of laser-induced periodic surface structures (LIPSS) formation using a high repetition rate femtosecond laser beam irradiation of magnetron-sputtered titanium oxide thin films (TiO1.8) ...
  • Flow equations in arbitrary signature 
    Sabra, Wafic A. (Elsevier B.V., 2022)
    We discuss general bosonic configurations of four-dimensional N=2 supergravity coupled to vector multiplets in (t,s) space-time. The supergravity theories with Euclidean and neutral signature are described by the so-called ...
  • Force-extension curves for broken-rod macromolecules: Dramatic effects of different probing methods for two and three rods 
    Alexeev, A. V.; Maltseva, Diana V.; Ivanov, Viktor A.; Klushin, Leonid I.; Skvortsov, Aleksander M. (American Institute of Physics Inc., 2015)
    We study force-extension curves of a single semiflexible chain consisting of several rigid rods connected by flexible spacers. The atomic force microscopy and laser optical or magnetic tweezers apparatus stretching these ...
  • Formation of WO3 by remote plasma assisted oxidation of tungsten thin films 
    Mohtar, Abeer Al; Kassem, Wassim; Tabbal, Malek; Roumié, Mohamad (Elsevier B.V., 2016)
    In this work, we have investigated the formation of WO3 by remote plasma oxidation of pulsed laser deposited tungsten thin films. The effects of experimental parameters, such as pressure, temperature and duration on the ...

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