Magnetic Properties of MoS2 Using Density Functional Theory

Ms. Maryam Moutan

PhD Student Regular

Date: Monday, 07 April 2025

Time: 11:00 a.m.

Location: Bldg. 6/Room 125

This work focuses on investigating the magnetic properties of molybdenum disulfide, which is a promising material known for its remarkable properties. Using first-principles calculations. The transition from an indirect band gap in bulk to a direct band gap in monolayer MoS2 has profound implications for its application in semiconductors, optoelectronics, and energy-efficient devices. The calculations of pristine and doped MoS2 performed using Quantum ESPRESSO through density functional theory (DFT), we map the bands along high-symmetry k-paths. The results are visualized using python to present a detailed and clear representation of the material’s behavior. This work not only provides insight into the fundamental physics of MoS2 but also shed the light into its importance as an outstanding candidate for spintronics.

Floquet Engineering: Driving Quantum Matter into Novel Topological and Non-Equilibrium Phases

Mr. Miftah Hadi Syahputra Anfa

PhD Student Regular

Date: Monday, 07 April 2025

Time: 11:15 a.m

Location: Bldg. 6/Room 125

Controlling condensed matter systems with time-periodic drives (Floquet engineering) enables real-time manipulation of electronic band structures, leading to novel non-equilibrium quantum phases. The theoretical understanding of such phenomena is provided by an extension of Bloch’s theorem to the time domain - Floquet theory. In this talk, we will explore the basic concepts of Floquet theory and discuss its role in modifying electronic states. We will also discuss examples such as light-induced topological insulators, Floquet-Weyl semimetals, and their potential applications.

Charged Particles Capture Cross-Section by a Weakly Charged Schwarzschild Black Hole

Speaker:

Ms. Lana Almahdy

Masters Student Regular

Date: Monday, 07 April 2025

Time: 11:30 a.m

Location: Bldg. 6/Room 125

This study investigates the capture cross-section of charged particles by a weakly charged Schwarzschild black hole. The dependence of the maximum impact parameter for capture on the particle’s energy is analyzed numerically for different values of the electromagnetic coupling strength between the particle and the black hole. The capture cross-section is then calculated. The results demonstrate that, for ultra-relativistic particles, the capture cross-section remains independent of the electromagnetic coupling. Finally, the astrophysical implications of these findings are discussed.

 All faculty, researchers and students are invited to attend.