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We study the transport properties of Dirac fermions through gapped graphene through a magnetic barrier irradiated by a laser field oscillating in time. We use Floquet theory and the solution of Weber's differential equation to determine the…

介观与纳米尺度物理 · 物理学 2023-12-27 Rachid El Aitouni , Miloud Mekkaoui , Ahmed Jellal , Michael Schreiber

We study the transmission of Dirac fermions in graphene through a tilted barrier potential in the presence of a laser field of frequency $\omega$. By using Floquet theory, we solve the Dirac equation and then obtain the energy spectrum. The…

介观与纳米尺度物理 · 物理学 2023-04-04 Rachid El Aitouni , Miloud Mekkaoui , Ahmed Jellal

We study the tunneling effect of Dirac fermions in a graphene sheet by introducing a potential barrier in a region of width $D$ exposed to laser field. This sheet is placed on a boron nitride/ferromagnetic substrate such as cobalt or…

介观与纳米尺度物理 · 物理学 2025-03-06 Rachid El Aitouni , Ahmed Jellal , Pablo Díaz , David Laroze

We investigate the strain effect along armchair and zigzag directions on the tunneling transport of Dirac fermions in graphene laser barrier through a time dependent potential along y-axis. Our system is composed of three regions and the…

介观与纳米尺度物理 · 物理学 2022-08-31 Hasna Chnafa , Miloud Mekkaoui , Ahmed Jellal , Abdelhadi Bahaoui

We study the transmission probability of Dirac fermions in graphene scattered by a triangular double barrier potential in the presence of an external magnetic field. Our system made of two triangular potential barrier regions separated by a…

介观与纳米尺度物理 · 物理学 2015-11-24 Miloud Mekkaoui , Ahmed Jellal , Hocine Bahlouli

Transmission probabilities of Dirac fermions in graphene under linear barrier potential oscillating in time are investigated. Solving Dirac equation we end up with the solutions of the energy spectrum depending on several modes coming from…

介观与纳米尺度物理 · 物理学 2019-04-03 El Bouâzzaoui Choubabi , Ahmed Jellal , Miloud Mekkaoui

Transmission of Dirac fermions through a chip of graphene under the effect of magnetic field and a time vibrating double barrier with frequency $w$ is investigated. Quantum interference within the oscillating barrier has an important effect…

介观与纳米尺度物理 · 物理学 2015-03-05 Miloud Mekkaoui , El Bouâzzaoui Choubabi , Ahmed Jellal , Hocine Bahlouli

We study the transmission probability of Dirac fermions in graphene scattered by a triangular double barrier potential in the presence of an external magnetic field. Our system made of two triangular potential barrier regions separated by a…

介观与纳米尺度物理 · 物理学 2022-11-09 Miloud Mekkaoui , Ahmed Jellal , Hocine Bahlouli

Photon-assisted charge transport through a double barrier laser structure, separated by a region assisted by a magnetic field, is studied. Employing Floquet theory and matrix formalism, the transmission probabilities for the central band…

介观与纳米尺度物理 · 物理学 2024-10-18 Rachid El Aitouni , Miloud Mekkaoui , Abdelhadi Bahaoui , Ahmed Jellal

We investigate the transmissions of fermions through gapped graphene structures by employing a combination of double barrier tilting and a time-oscillating potential. The latter introduces additional sidebands into the transmission…

介观与纳米尺度物理 · 物理学 2024-05-28 Miloud Mekkaoui , Ahmed Jellal , Abderrahim El Mouhafid

We study the effect of the energy gap on the transmission of fermions in graphene exposed to linearly polarized light as a laser barrier. We determine the energy spectrum, apply boundary conditions at interfaces, and use the transfer matrix…

介观与纳米尺度物理 · 物理学 2023-12-27 Hasna Chnafa , Miloud Mekkaoui , Ahmed Jellal , Abdelhadi Bahaoui

We study the transmission probability in an AB-stacked bilayer graphene of Dirac fermions scattered by a double barrier structure in the presence of a magnetic field. We take into account the full four bands of the energy spectrum and use…

介观与纳米尺度物理 · 物理学 2015-05-22 Ilham Redouani , Ahmed Jellal , Hocine Bahlouli

We study how electrons move across a graphene sheet when it encounters two magnetic barriers with a region in between that is continuously driven by laser light. Rather than acting as a static obstacle, this illuminated middle section…

介观与纳米尺度物理 · 物理学 2025-12-04 Rachid El Aitouni , Miloud Mekkaoui , Pablo Díaz , David Laroze , Ahmed Jellal

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, we calculate transmission and reflection coefficients using…

介观与纳米尺度物理 · 物理学 2025-03-06 Ahmed Jellal , Rachid El Aitouni , Pablo Díaz , David Laroze

We studied the transport properties of electrons in graphene as they are scattered by a double barrier potential in the presence of an inhomogeneous magnetic field. We computed the transmission coefficient and Goos-H\"anchen like shifts for…

介观与纳米尺度物理 · 物理学 2016-02-17 Miloud Mekkaoui , Ahmed Jellal , Hocine Bahlouli

We investigate the effect of strain along armchair and zigzag directions on electrical transport in graphene through a magnetic barrier and a linearly polarized electromagnetic wave. In the context of Floquet theory, the eigenvalues and…

介观与纳米尺度物理 · 物理学 2023-02-01 Hasna Chnafa , Miloud Mekkaoui , Ahmed Jellal , Abdelhadi Bahaoui

We study the transport properties of Dirac fermions in a graphene-based double-barrier structure composed of two tilted-cone regions separated by a central pristine graphene region. Using the transfer matrix method, we systematically…

介观与纳米尺度物理 · 物理学 2025-08-26 M. Raggui , O. Habti , A. Kamal , E. B. Choubabi

We investigate theoretically the transmission of electrons through a pair of {\delta}- function magnetic barriers in graphene in presence of external monochromatic, linearly polarised and CW laser field. The transmission coefficients are…

介观与纳米尺度物理 · 物理学 2016-07-20 R. Biswas , C. Sinha

Electron transport in graphene under a laser-modulated barrier is studied in the presence of an energy gap, a scalar potential, and a uniaxial zigzag strain. The transfer-matrix approach is used with the boundary conditions to derive the…

介观与纳米尺度物理 · 物理学 2026-04-22 Hasna Chnafa , Clarence Cortes , David Laroze , Ahmed Jellal

We study the tunneling of Dirac fermions in graphene through a double barrier potential allowing the carriers to have an effective mass inside the barrier as generated by a lattice miss-match with the boron nitride substrate. The…

介观与纳米尺度物理 · 物理学 2016-05-06 Hocine Bahlouli , El Bouazzaoui Choubabi , Ahmed Jellal , Miloud Mekkaoui
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