322 citations
- Chouaib Doukkali UniversityMA28 papers
- Saudi Center for Theoretical PhysicsSA19 papers
- King Fahd University of Petroleum and MineralsSA12 papers
- Max Planck Institute for the Physics of Complex SystemsDE6 papers
- Université Ibn ZohrMA5 papers
- National University of Sciences and TechnologyPK3 papers
- Prince Sattam Bin Abdulaziz UniversitySA3 papers
- Queen's University BelfastGB3 papers
- Texas Tech UniversityUS3 papers
- University of SheffieldGB3 papers
- Agenzia Spaziale ItalianaIT2 papers
- Aswan UniversityEG2 papers
6 papers · 1 filter
Frustrated Metastable Behavior of Magnetic and Transport Properties in Charge Ordered La1-xCaxMnO3+d Manganites
Wiqar Hussain Shah, A. Mumtaz
We have studied the effect of metastable, irreversibility induced by repeated thermal cycles on the electric transport and magnetization of polycrystalline samples of La1-xCaxMnO3…
Dirac Fermions in Inhomogeneous Magnetic Field
Ahmed Jellal, Abderrahim El Mouhafid
We study a confined system of Dirac fermions in the presence of inhomogeneous magnetic field. Splitting the system into different regions, we determine their corresponding energy s…
Dynamical mass generation via space compactification in graphene
A. D. Alhaidari, A. Jellal, E. B. Choubabi +1
Fermions in a graphene sheet behave like massless particles. We show that by folding the sheet into a tube they acquire non-zero effective mass as they move along the tube axis. Th…
Electromagnetic Excitations of A_n Quantum Hall Droplets
Mohammed Daoud, Ahmed Jellal, Abdellah Oueld Guejdi
The classical description of A_n internal degrees of freedom is given by making use of the Fock--Bargmann analytical realization. The symplectic deformation of phase space, includi…
Symplectic Fluctuations for Electromagnetic Excitations of Hall Droplets
Mohammed Daoud, Ahmed Jellal, Abdellah Oueld Guejdi
We show that the integer quantum Hall effect systems in plane, sphere or disc, can be formulated in terms of an algebraic unified scheme. This can be achieved by making use of a ge…
Relativistic Double Barrier Problem with Three Sub-Barrier Transmission Resonance Regions
A. D. Alhaidari, H. Bahlouli, A. Jellal
We obtain exact scattering solutions of the Dirac equation in 1+1 dimensions for a double square barrier vector potential. The potential floor between the two barriers is higher th…