139 citations · 828 across the 30 of their papers we have counts for
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Evolution of terahertz third harmonic response across rare-earth nickelate phase-diagram
Gulloo Lal Prajapati, Igor Ilyakov, Alexey Ponomaryov +8
High harmonic generation (HHG) is a sensitive probe for investigating electronic structures and dynamics of materials and a source for attosecond pulses. In particular, HHG with te…
Higher harmonics in Mott-Hubbard insulators as sensors
Abdelrahman Azab, Friedemann Queisser, Gulloo Lal Prajapati +2
Using strong-coupling time-dependent perturbation theory, we study the response of Mott and charge-transfer insulators to an oscillating electric field. We derive analytical expres…
Terahertz-driven ultrafast dynamics of rare-earth nickelates by controlling only the charge degree of freedom
Gulloo Lal Prajapati, Sergey Kovalev, Igor Ilyakov +5
An important strategy for understanding the microscopic physics of strongly correlated systems and enhancing their technological potential is to selectively drive the fundamental d…
Terahertz harmonic generation across the Mott insulator-metal transition
Gulloo Lal Prajapati, Sujay Ray, Igor Ilyakov +8
We demonstrate terahertz (THz) harmonic generation across the Mott insulator-metal transition in rare-earth nickelates (RNiO, R = rare-earth atom). The THz harmonic generation…