activity
20212026
most citedThe optical absorption in indirect semiconductor to semimetal PtSe2 arises from direct transitions

14 citations · 33 across the 7 of their papers we have counts for

collaborators

8 papers

cond-mat.mtrl-sci2026

Ultralow-Tensile Strain Enables Exciton Funneling and Energy Transfer to Boost MoSe2 Photoluminescence Quantum Yield

Gayatri, Mehdi Arfaoui, Debashish Das +14

Strain engineering is a powerful route for controlling the exciton dynamics in van der Waals (vdW) heterostructures (HSs). The interlayer energy transfer (ET) process is another ke…

cond-mat.supr-con2025

Visualization of vortex sheets and half quantum vortices in the chiral odd-parity superconductor UPt

P. García-Campos, V. O. Dolocan, M. -K. Arfaoui +3

Superconductivity is characterized by vanishing electrical resistance and magnetic flux expulsion. For conventional type II superconductors, the magnetic flux expulsion is incomple…

cond-mat.mtrl-sci2025★ 1 cited

Fast Interlayer Energy Transfer from the Lower Bandgap MoS2 to the Higher Bandgap WS2

Gayatri, Mehdi Arfaoui, Debashish Das +9

Energy transfer (ET) is a dipole-dipole interaction, mediated by the virtual photon. Traditionally, ET happens from the higher (donor) to lower bandgap (acceptor) material. However…

cond-mat.mes-hall2024★ 13 cited

Twisted MoSe2 Homobilayer Behaving as a Heterobilayer

Arka Karmakar, Abdullah Al-Mahboob, Natalia Zawadzka +11

Heterostructures (HSs) formed by the transition-metal dichalcogenides (TMDCs) materials have shown great promise in next-generation optoelectronic and photonic applications. An art…

cond-mat.mtrl-sci2023★ 14 cited

The optical absorption in indirect semiconductor to semimetal PtSe2 arises from direct transitions

Marin Tharrault, Sabrine Ayari, Mehdi Arfaoui +12

is a van der Waals material transitioning from an indirect bandgap semiconductor to a semimetal with increasing thickness. Its absorption threshold has been conjectur…

cond-mat.mes-hall2023★ 4 cited

Optical properties of orthorhombic germanium sulfide: Unveiling the Anisotropic Nature of Wannier Exciton

Mehdi Arfaoui, Natalia Zawadzka, Sabrine Ayari +7

To fully explore exciton-based applications and improve their performance, it is essential to understand the exciton behavior in anisotropic materials. Here, we investigate the opt…

cond-mat.mtrl-sci2023★ 1 cited

Atomic Layer-controlled Nonlinear Terahertz Valleytronics in Dirac Semi-metal and Semiconductor PtSe2

Minoosh Hemmat, Sabrine Ayari, Martin Micica +16

Platinum diselenide (PtSe2) is a promising two-dimensional (2D) material for the terahertz (THz) range as, unlike other transition metal dichalcogenides (TMDs), its bandgap can be…

cond-mat.mes-hall2021

Hyperfine Interaction in a MoS Quantum Dot: Decoherence of a Spin-Valley Qubit

Mehdi Arfaoui, Sihem Jaziri

A successful and promising device for the physical implementation of electron spin-valley based qubits is the Transition Metal Dichalcogenide monolayer (TMD-ML) semiconductor quant…