4 papers
Spin-Orbital Hall Nano-Oscillators using PtCr/NiFe
Utkarsh Shashank, Akash Kumar, Daegeun Jo +11
The orbital Hall effect provides a promising route for generating angular-momentum currents beyond conventional spin Hall physics. PtCr alloys exhibit unusually large current-induc…
Raman scattering of phonon polaritons under nanoscale confinement: the role of structure and environment
George Zograf, Betul Kucukoz, Oleg Kotov +10
Strong light-matter coupling gives rise to polaritons -- quasiparticles that combine both photonic and material characteristics. Here, we show that polar nanocrystals exhibit struc…
Bulk spin-orbit torque-driven spin Hall nano-oscillators using PtBi alloys
Utkarsh Shashank, Akash Kumar, Tahereh Sadat Parvini +7
Spin-orbit-torque-driven auto-oscillations in spin Hall nano-oscillators (SHNOs) offer a transformative pathway toward energy-efficient, nanoscale microwave devices for next-genera…
Ultrathin 3R-MoS metasurfaces with atomically precise edges for efficient nonlinear nanophotonics
George Zograf, Betül Küçüköz, Alexander Yu. Polyakov +5
Dielectric metasurfaces that combine high-index materials with optical nonlinearities are widely recognized for their potential in various quantum and classical nanophotonic applic…