4 papers
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…
Room-Temperature Terahertz Photoconductivity Polarity Switching in High Entropy Nickelates with Implications for Photonic Synapses
Sanjeev Kumar, Brijesh Singh Mehra, Gaurav Dubey +5
High entropy oxides (HEO) hold the potential to revolutionize the conventional material paradigms by leveraging high order of chemical disorder that induces highly desirable exotic…
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…