Publications (27)
Pion electroproduction measurements in the nucleon resonance region
R. Li, N. Sparveris, H. Atac +46
We report new pion electroproduction measurements in the resonance, utilizing the SHMS - HMS magnetic spectrometers of Hall C at Jefferson Lab. The data focus on a regio…
Extensions of beta and related functions
M. Ghayasuddin, M. Ali, R. B. Paris
In this paper, we introduce and investigate a new extension of the beta function by means of an integral operator involving a product of Bessel-Struve kernel functions. We also def…
Interfacial coupling across a modified interface studied with ferromagnetic resonance
R. Magaraggia, S. McIntyre, K. Kennewell +5
Using spin waves we directly probe the interface of an exchange biased NiFe/IrMn film which has been modified by the presence of an Au dusting layer. Co…
Efficiency measurements of GEM GE1/1 chambers in the upgraded CMS Endcap Muon System using 2023 collision data at TeV
M. Abbas, S. Abbott, M. Abbrescia +184
The CMS experiment at the Large Hadron Collider employs Gas Electron Multiplier (GEM) detectors, a technology based on gaseous ionization, as one of the muon detectors. The muon sp…
Pulsive feedback control for stabilizing unstable periodic orbits in a nonlinear oscillator with a non-symmetric potential
G. Litak, M. Ali, L. M. Saha
We examine a strange chaotic attractor and its unstable periodic orbits in case of one degree of freedom nonlinear oscillator with non symmetric potential. We propose an efficient…
Generalized Beta-type integral operators
M. Ali, M. Ghayasuddin, R. B. Paris
This research note deals with the evaluation of some generalized beta-type integral operators involving the multi-index Mittag-Leffler function . Further,…
Investigating the effects of nanoparticles and surfactants on heat transfer performance of water in nucleate pool boiling experiment
M. Abdelrashied, H. Yousery, M. Roshdy +4
The main objective of the present study is to investigate the effect of adding nanoparticles at different concentrations and sizes to boiling distilled water on the nucleate pool b…
Unexpected structural and magnetic depth dependence of YIG thin films
J. F. K. Cooper, C. J. Kinane, S. Langridge +7
We report measurements on yttrium iron garnet (YIG) thin films grown on both gadolinium gallium garnet (GGG) and yttrium aluminium garnet (YAG) substrates, with and without thin Pt…
Spin-transfer switching and low-field precession in exchange-biased spin valve nano-pillars
M. C. Wu, A. Aziz, D. Morecroft +5
Using a three-dimensional focused-ion beam lithography process we have fabricated nanopillar devices which show spin transfer torque switching at zero external magnetic fields. Und…
Combined Newton-Raphson and Streamlines-Upwind Petrov-Galerkin iterations for nano-particles transport in buoyancy driven flow
M. K. Riahi, M. Ali, Y. Addad +1
The present study deals with the finite element discretization of nanofluid convective transport in an enclosure with variable properties. We study the Buongiorno model, which coup…
Polarization gratings spontaneously formed by the helical Twist-Bend Nematic phase
N. VaupotiÄ, M. Ali, P. W. Majewski +2
Spontaneous formation of polarization gratings by liquid crystals made of bent dimeric molecules is reported. The grating is formed within the temperature range of the twist bend m…
Thickness dependence study of current-driven ferromagnetic resonance in Y3Fe5O12/heavy metal bilayers
Z. Fang, A. Mitra, A. L. Westerman +5
We use ferromagnetic resonance to study the current-induced torques in YIG/heavy metal bilayers. YIG samples with thickness varying from 14.8 nm to 80 nm, with Pt or Ta thin film o…
Strong-field Gravity Tests with the Double Pulsar
M. Kramer, I. H. Stairs, R. N. Manchester +27
Continued observations of the Double Pulsar, PSR J0737-3039A/B, consisting of two radio pulsars (A and B) that orbit each other with a period of 2.45hr in a mildly eccentric (e=0.0…
Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering
H. Atac, A. Camsonne, M. K. Jones +37
We propose to conduct a measurement of the Virtual Compton Scattering reaction in Hall C that will allow the precise extraction of the two scalar Generalized Polarizabilities (GPs)…
Morphological Aspects of Porous Silicon Prepared by Photoelectrochemical Etching
Oday A. Al-Owaedi, Sabah, M. Ali
In this work the effects of coherent radiation (Laser) and incoherent radiation (Halogen lamp) during the electrochemical etching process on the structural characteristics of n-typ…
Tailoring the physical properties of poly(3-Hexylthiophene) thin films using electro-spray deposition
M. Ali, M. Abbas, S. K. Shah +4
Structural and electronic properties of homogeneous poly(3-Hexylthiophene) (P3HT) films ob- tained from the electro-spray method were presented by means of grazing incidence x-ray…
Spin relaxation through Kondo scattering in Cu/Py lateral spin valves
J. T. Batley, M. C. Rosamond, M. Ali +3
The temperature dependence of the spin diffusion length typically reflects the scattering mechanism responsible for spin relaxation. Within non-magnetic metals it is reasonable to…
Dynamic pinning at a Py/Co interface measured using inductive magnetometry
K. J. Kennewell, M. Kostylev, R. Magaraggia +5
Broadband FMR responses for metallic single-layer and bi-layer magnetic films with total thicknesses smaller than the microwave magnetic skin depth have been studied. Two different…
Non-equilibrium magnetism in dual spin valves
A. Aziz, O. P. Wessely, M. Ali +4
The field of spin electronics (spintronics) was initiated by the discovery of giant magnetoresistance (GMR) for which Fert[1] and Grunberg[2] were awarded the 2007 Nobel Prize for…
The MUSE Target Chamber Post Veto
R. Ratvasky, T. Rostomyan, M. Ali +46
The Muon Scattering Experiment (MUSE) was developed to address the proton radius puzzle through simultaneous electron-proton and muon-proton scattering using the Paul Scherrer Inst…
Production of highly-polarized positrons using polarized electrons at MeV energies
D. Abbott, P. Adderley, A. Adeyemi +62
The Polarized Electrons for Polarized Positrons experiment at the injector of the Continuous Electron Beam Accelerator Facility has demonstrated for the first time the efficient tr…
Microwave screening by conduction currents in thin magnetic films: application in stripline broadband FMR
M. Kostylev, K. J. Kennewell, R. Magaraggia +3
Ferromagnetic resonance in conducting magnetic bilayers was studied using microstrip transducers. It was found that excitation or suppression of standing spin waves could be achiev…
Solver-Agnostic Implementation of Atom-Informed Thermal Conductivity Fields in Continuum Heat-Flow Simulations
W. Downs, C. Ugwumadu, M. Ali +1
A recent work introduced the Simulator Collection for Atomic-to-Continuum Scales (SCACS) toolkit, a framework for improving finite element predictions of heat flow by mapping atom-…
The MUSE Beamline Calorimeter
W. Lin, T. Rostomyan, R. Gilman +40
The MUon Scattering Experiment (MUSE) was motivated by the proton radius puzzle arising from the discrepancy between muonic hydrogen spectroscopy and electron-proton measurements.…
Spin-valve Josephson junctions with perpendicular magnetic anisotropy for cryogenic memory
N. Satchell, P. M. Shepley, M. Algarni +8
We demonstrate a Josephson junction with a weak link containing two ferromagnets, with perpendicular magnetic anisotropy and independent switching fields in which the critical curr…
Electrical manipulation of a ferromagnet by an antiferromagnet
V. Tshitoyan, C. Ciccarelli, A. P. Mihai +5
We demonstrate that an antiferromagnet can be employed for a highly efficient electrical manipulation of a ferromagnet. In our study we use an electrical detection technique of the…
Controlled enhancement or suppression of exchange biasing using impurity -layers
M. Ali, C. H. Marrows, B. J. Hickey
The effects of inserting impurity -layers of various elements into a Co/IrMn exchange biased bilayer, at both the interface, and at given points within the IrMn layer a distanc…