3 papers
cond-mat.mtrl-sci2026
Phonon scattering mechanisms in WTe observed by ultrafast coherent phonon spectroscopy
Mizuki Akei, Yu Mizukoshi, Muneaki Hase
Revealing the mechanisms of phonon scattering is crucial for understanding material properties such as transport characteristics and optical responses. It can be discussed by measu…
cond-mat.mtrl-sci2025
Role of interlayer shear phonons on lattice symmetry switching in the transition metal dichalcogenide WTe
Mizuki Akei, Takumi Fukuda, Yu Mizukoshi +2
Coherent phonon control using ultrashort pulse trains is the key to realizing structural phase transitions in solids by non-thermal pathways. By combining double-pulse excitation a…
cond-mat.mtrl-sci2024
Spin dependent bandgap renormalization and state filling effect in BiSe observed by ultrafast Kerr rotation
Kazuhiro Kikuchi, Yu Mizukoshi, Takumi Fukuda +2
We investigate the ultrafast spin dynamics of the prototypical topological insulator using time-resolved Kerr-rotation (polarization-change) measurements ac…