10 papers
Large Photoelasticity in Topological Antiferromagnet MnSn Studied by Coherent Acoustic Phonon
Yuchen Wang, Takuya Matsuda, Yuta Murotani +5
We investigate the role of ultrafast strain on the electronic and optical responses in topological antiferromagnet MnSn thin films using near-infrared femtosecond pump-probe sp…
Efficiency in a repetitive pulse magnet
Akihiko Ikeda, Yuto Ishii, Yasuhiro H. Matsuda +3
A repetitive-pulse magnet is a promising tool when combined with repetitive excitations, such as pulsed lasers. Technically, the repetition and the magnetic field values in a repet…
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…
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…
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.…
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…