146 citations · 360 across the 10 of their papers we have counts for
10 papers
Emergence of high-mobility carriers in topological kagome bad metal MnSn by intense photoexcitation
Takuya Matsuda, Tomoya Higo, Kenta Kuroda +13
Kagome-lattice materials offer novel playgrounds of exploring topologically nontrivial states of electrons under influence of many-body interactions. A noncollinear kagome antiferr…
Anomalous Hall effect of light-driven three-dimensional Dirac electrons in bismuth
Yoshua Hirai, Naotaka Yoshikawa, Masashi Kawaguchi +4
Recent advancement in laser technology has opened the path toward the manipulation of functionalities in quantum materials by intense coherent light. Here, we study three-dimension…
Light-induced anomalous Hall conductivity in massive 3D Dirac semimetal CoSnS
Naotaka Yoshikawa, Shun Okumura, Yoshua Hirai +10
Weyl semimetals can emerge from Dirac semimetals when the time-reversal or spatial-inversion symmetries are broken. Recently, it has been proposed based on the Floquet theory that…
Ultrafast Dynamics of Intrinsic Anomalous Hall Effect in the Topological Antiferromagnet Mn3Sn
Takuya Matsuda, Tomoya Higo, Takashi Koretsune +8
We investigate ultrafast dynamics of the anomalous Hall effect (AHE) in the topological antiferromagnet Mn3Sn with sub-100 fs time resolution. Optical pulse excitations largely ele…
Dynamical symmetry of strongly light-driven electronic system in crystalline solids
Kohei Nagai, Kento Uchida, Naotaka Yoshikawa +3
The Floquet state, which is a periodically and intensely light driven quantum state in solids, has been attracting attention as a novel state that is coherently controllable on an…
Inherent Limit to Coherent Phonon Generation under Non-Resonant Light Field Driving
Kento Uchida, Kohei Nagai, Naotaka Yoshikawa +1
Coherent manipulation of quasi-particles is a crucial method to realize ultrafast switching of the relating macroscopic order. In this letter, we studied coherent phonon generation…
Light-induced nonequilibrium response of the superconducting cuprate LaSrCuO
Hiroaki Niwa, Naotaka Yoshikawa, Kaito Tomari +4
We report the dynamics of the cuprate superconductor LaSrCuO () after intense photoexcitation utilizing near-infrared (800 nm) optical pump-terahertz pr…
Charge carrier dynamics of FeSe thin film investigated by terahertz magneto-optical spectroscopy
Naotaka Yoshikawa, Masayuki Takayama, Naoki Shikama +4
We performed terahertz magneto-optical spectroscopy of FeSe thin film to elucidate the charge carrier dynamics. The measured diagonal (longitudinal) and off-diagonal (Hall) conduct…
Interband resonant high-harmonic generation by valley polarized electron-hole pairs
Naotaka Yoshikawa, Kohei Nagai, Kento Uchida +4
We demonstrated nonperturbative high harmonics induced by intense mid-infrared light up to 18th order that well exceed the material bandgap in monolayer transition metal dichalcoge…
Phase-resolved Higgs response in superconducting cuprates
Hao Chu, Min-Jae Kim, Kota Katsumi +26
In high energy physics, the Higgs field couples to gauge bosons and fermions and gives mass to their elementary excitations. Experimentally, such couplings can be inferred from the…