3 papers
cond-mat.mtrl-sci2026
Time- and Frequency-Resolved Observation of Inverse Orbital Hall Effect in Gallium Nitride via Terahertz Polarimetry
Kota Aikyo, Tomohiro Fujimoto, Ami Mi Shirai +6
Orbitronics has attracted significant attention as a platform for information storage and processing that exploits the orbital angular momentum (OAM) of electrons without the need…
cond-mat.mes-hall2025
Signature of inverse orbital Hall effect in silicon studied using time-resolved terahertz polarimetry
Ami Mi Shirai, Kota Aikyo, Yuta Murotani +6
We investigated the anomalous Hall conductivity induced in silicon by circularly polarized light at room temperature using near-infrared (NIR) pump-terahertz (THz) probe spectrosco…
cond-mat.mtrl-sci2024
Valley polarization dynamics of photoinjected carriers at the band edge in room-temperature silicon studied by terahertz polarimetry
Ami M. Shirai, Yuta Murotani, Tomohiro Fujimoto +3
Sixfold-degenerate valleys in Si have attracted considerable attention for valleytronics application. Using optical pump-terahertz (THz) probe spectroscopy, we study the dynamics o…