Hosam M Gomaa | Material Science | Member

Posted on by ScienceFather

Dr. Hosam M Gomaa | Material Science | Member

PHD at Faculty of Science, Al-Azhar University, Cairo, Egypt

Dr. Hosam M. Gomaa, based in Giza, Egypt, is an accomplished physicist specializing in Solid State Physics. With a background from Al-Azhar University, Cairo, he has lectured extensively in Libya and Egypt, covering diverse topics from General Physics to Optics. Currently affiliated with the Pharaohs Higher Institute, his research spans Materials, Optics, and Physics, focusing on areas like Oxide Glasses and Nanomaterials. Dr. Gomaa is known for his expertise in Thermal Analysis and Spectral Techniques. He has been an integral part of prestigious scientific teams, contributing significantly to Mossbauer Effect and Nanoscience research labs.

Professional Profiles:

Educational Qualifications

B. Sc. of Physics, Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt, 1999/2000 M. Sc. of Solid State Physics, Department of Physics, Faculty of Science, Al-Azhar University, Cairo, Egypt, 2005 Ph. D. of Solid State Physics, Department of Physics, Faculty of Science, Al-Azhar University, Cairo, Egypt, 2008

Statement of Previous Experience:

Formal Lecturer (Assistant Professor) of Physics, Department of Physics, Faculty of Arts and Sciences, Sert University, Libya, 2009-2015 Lecturer (Assistant Professor) of Engineering Physics, Department of Physics, Faculty of Engineering Technology, Sert University, Libya, 2009-2015 Formal Tutor (Assistant Professor) of Basic Sciences (Physics, Electrical Engineering, Fundamentals of Electronics, Optics), Optical Branch, High Institute of Optical Technology, Cairo, Egypt, 2016-2020

Research Focus:

Dr. Hosam M. Gomaa’s research primarily focuses on the optical and structural properties of various glass systems, with a particular emphasis on bismuth borate glasses. His work encompasses the investigation of dopants like zinc, calcium, and niobium, and their effects on linear and nonlinear optical parameters. Additionally, he explores the structural modifications induced by the inclusion of different metal oxides, such as vanadium, copper, and titanium. Dr. Gomaa’s research contributes significantly to the understanding of glass materials for optoelectronic applications and radiation shielding. His studies offer valuable insights into the development of novel glass compositions with tailored optical and functional properties.

Publications

  1. Non-zero θ13 and δCP phase with A4 flavor symmetry and deviations to tri-bi-maximal mixing via Z2 × Z2 invariant perturbations in the neutrino sector, Publication: 2024.
  2. Effect of replacing B2O3 with Dy2O3 on the structural, physical, and radiation shielding properties of sodium boroaluminate glass, Publication: 2024.
  3. Investigating La2O3-enriched glass compositions: thermal, optical, structural properties and Gamma-Ray shielding efficiency, Publication: 2024.
  4. Photoimpedance spectroscopy of ZnTe/ZnMnTe heterojunction for photodetector devices using Cole–Cole diagrams and relaxation time process, Publication: 2023.
  5. Effect of BaO doping on the structural and optical properties of some cerium-copper sodium borate glasses, Publication: 2023.
  6. Estimate of the effect of adding CoCl 2 in different amounts on the structural, optical properties, and the radiation shielding ability of arsenic borate glasses containing Na+, Ca++, and Pb++ cations, Publication: 2023.
  7. New mathematical formulas for more accurate physical descriptions of the optical and optoelectric conductivities of an optical medium, Publication: 2023.
  8. Effect of Graphene Nanopowder on the Structural and Optical Characteristics of Lead Borovanadate Glass Containing Ca2+ and Na+ Cations, Publication: 2023.
  9. Structural properties, linear, and non-linear optical parameters of ternary Se80Te(20−x)Inx chalcogenide glass systemsAnálisis estructural y parámetros ópticos lineales y no lineales de sistemas ternarios de vidrio de calcogenuro de composición Se80Te(20-x)Inx, Publication: 2023.
  10. Toward a novel and accurate relationship between electrical and optical conductivity in opto-material sciences: New strategy, Publication: 2022.

 

.

Mestapha Arejdal | Condensed Matter | Member

Posted on by ScienceFather

Dr. Mestapha Arejdal | Condensed Matter | Member

PHD at Mohammed V University, Rabat, Morocco

Mestapha Arejdal, PhD, is a physicist specializing in computational modeling and condensed matter physics. With teaching experience at the University of Marrakech and research tenure at Mohammed V University, Rabat, his work delves into Spintronics and magnetic refrigeration materials. His expertise lies in Monte Carlo simulations and Ab-initio methods, contributing to advancements in energy harvesting and green technologies. Arejdal’s publications in renowned journals and roles as a reviewer underscore his commitment to scientific rigor. Proficient in various programming languages and fluent in French and English, he blends theoretical prowess with practical applications, fostering innovation in physics and beyond.

Professional Profiles:

Academic Background

2014-2017: PhD in Physics, specializing in Computer Physics and Condensed Matter Modeling, Mohammed V University, Rabat, Morocco. 2012-2014: Master in Physics Informatics, Faculty of Sciences, Mohammed V University, Rabat, Morocco. 2011-2012: Licence in Energy Physics, University Ibn ZOHR, Agadir, Morocco. 2009-2011: Diploma of General University Studies in Physics, University Ibn ZOHR, Agadir, Morocco. 2008-2009: Bachelor of Experimental Sciences in Physics, High School Moulay Abdellah Ben Hassain, Agadir, Morocco

Academic Positions

2017-2019: Teacher at the private University of Marrakech. 2017-2019: Researcher at Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScI), Faculty of Sciences, Mohammed V University, Rabat, Morocco

Area of Research Interests

Enjoys reading and traveling. Demonstrates strong teamwork, adaptability, flexibility, and autonomy.

Skills

Proficient in modeling and computer science tools such as Matlab, Scilab, Fortran, and Gaussian. Experienced in programming languages like C and C++. Fluent in French and English.

Research Focus:

Specializes in the theoretical study of magnetic properties and the magnetocaloric effect of materials, particularly in Spintronics (Dendrimer models) and magnetic refrigeration materials (MnAs/MnBi). Expertise in Monte Carlo simulations, Ab-initio methods (DFT), and mean-field approximation. Investigates nanomaterials and complex systems for potential applications in energy harvesting and green technologies.

Publications 

  1. Prediction of the magnetocaloric behaviors of the Kekulene structure for the magnetic refrigeration, cited by: 17, Publication date: 2020.
  2. Structural and optical properties of Zn1−x−yAlx SiyO wurtzite heterostructure thin film for photovoltaic applications, cited by: 2, Publication date: 2020.
  3. The theoretical study of the magneto-caloric effect in a nano-structure formed on a Dendrimer structure, cited by: 4, Publication date: 2020.
  4. Magneto-caloric effect in Pb2CoUO6 with the second-order phase transition, Publication date: 2021.
  5. The electronic, magnetic and optical properties of Ba2MUO6 compounds with (M = Ni, Co, Cd and Zn): DFT calculation, cited by: 2, Publication date: 2021.
  6. The magnetic cooling of YTiO3 compound for magnetic refrigeration, cited by: 3, Publication date: 2022.
  7. Magnetic cooling and critical exponents at near room temperature: The SrCoO3 perovskite,Publication date: 2022.
  8. Effect of Thickness Size on Magnetic Behavior of Layered Ising Nanocube Fe/Co/Fe: a Monte Carlo Simulation, Publication date: 2022.
  9. Effects of size for an assembly of core-shell nanoparticles with the cubic structure: Monte Carlo simulations, Publication date: 2022.
  10. Theoretical aspects of magnetic, magnetocaloric, and critical exponents: Nanomaterial model, Publication date: 2023.

 

.