3 papers
cond-mat.mes-hall2025
Twist Angle Dependent Ultrafast Transient Dynamics of MoSe/WSe van der Waals Heterostructures beyond the Exciton Mott Transition
Vikas Arora, Pramoda K Nayak, Victor S Muthu +1
Two-dimensional van der Waals heterostructures (HS) exhibit twist-angle () dependent interlayer charge transfer, driven by moiré potential that tunes the electronic band struc…
cond-mat.mtrl-sci2024
Ultrafast Dynamics of Coherent Phonon Modes in Excitonic Insulator TaNiSe
Vikas Arora, Sukanya Pal, Luminita Harnagea +2
The spontaneous condensation of excitons in the excitonic insulating phase has been reported in TaNiSe below 325 K. In this context, we present the temperature-dependent op…
cond-mat.mtrl-sci2024
Pressure Dependence of Ultrafast Carrier Dynamics in Excitonic Insulator TaNiSe
Vikas Arora, Victor S Muthu, Arijit Sinha +3
An excitonic insulator (EI) phase is a consequence of collective many-body effects where an optical band gap is formed by the condensation of electron-hole pairs or excitons. We re…