3 papers
cond-mat.mes-hall2025
Effect of magnetic field and light on energy levels of (1+3+1) chirally twisted multilayer graphene system
Nadia Benlakhouy, Ahmed Jellal, Hocine Bahlouli +2
We study the Hofstadter butterfly spectrum in (1+3+1) chirally twisted multilayer graphene (CTMLG) subject to perpendicular magnetic field and light with different polarizations. W…
cond-mat.mes-hall2025
Laser-assisted tunneling and Hartman effect in graphene under scalar potential and exchange fields
Rachid El Aitouni, Ahmed Jellal, Pablo DÃaz +1
We study the tunneling effect of Dirac fermions in a graphene sheet by introducing a potential barrier in a region of width exposed to laser field. This sheet is placed on a bo…
cond-mat.mes-hall2025
Transmissions and group delay time in graphene with proximity exchange field and double barriers
Ahmed Jellal, Rachid El Aitouni, Pablo DÃaz +1
We study the transmission and group delay time for fermions in graphene under a proximity exchange field scattered by double barriers. Solving the Dirac equation over five regions,…