activity
20232026
most citedAnomalous Hall transport by optically injected isospin degree of freedom in Dirac semimetal thin film

5 citations · 8 across the 6 of their papers we have counts for

collaborators

7 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-sci2025

Calculations in Unified theory of the photovoltaic Hall effect by field- and light-induced Berry curvatures

Yuta Murotani, Tomohiro Fujimoto, Ryusuke Matsunaga

Photovoltaic Hall effect is an interesting platform of Berry curvature engineering by external fields. Floquet engineering aims at generation of light-induced Berry curvature assoc…

cond-mat.mtrl-sci2025

Unified theory of the photovoltaic Hall effect by field- and light-induced Berry curvatures

Yuta Murotani, Tomohiro Fujimoto, Ryusuke Matsunaga

Photovoltaic Hall effect, i.e., generation of a photocurrent perpendicular to the bias electric field, is an interesting platform of Berry curvature engineering by external fields.…

cond-mat.mtrl-sci2024★ 1 cited

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…

cond-mat.mtrl-sci2024★ 2 cited

Light-induced inverse spin Hall effect and field-induced circular photogalvanic effect in GaAs revealed by two-dimensional terahertz Fourier analysis

Tomohiro Fujimoto, Yuta Murotani, Tomohiro Tamaya +7

The electromotive force transverse to a bias field under irradiation of circularly polarized light, namely the photovoltaic Hall response or light-induced anomalous Hall effect, ha…

cond-mat.mes-hall2023★ 5 cited

Anomalous Hall transport by optically injected isospin degree of freedom in Dirac semimetal thin film

Yuta Murotani, Natsuki Kanda, Tomohiro Fujimoto +7

Chirality of massless fermions emergent in condensed matter is a key to understand their characteristic behavior as well as to exploit their functionality. However, chiral nature o…