50 citations · 149 across the 7 of their papers we have counts for
7 papers
Generation of third-harmonic spin oscillation from strong spin precession induced by terahertz magnetic near fields
Zhenya Zhang, Fumiya Sekiguchi, Takahiro Moriyama +9
The ability to drive a spin system to state far from the equilibrium is indispensable for investigating spin structures of antiferromagnets and their functional nonlinearities for…
Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids
Kotaro Nakagawa, Hideki Hirori, Shunsuke A. Sato +7
Since the discovery of high-order harmonic generation (HHG) in solids, much effort has been devoted to understanding its generation mechanism and both interband and intraband trans…
Nonequilibrium quasistationary spin disordered state in the Kitaev-Heisenberg magnet -RuCl
R. B. Versteeg, A. Chiocchetta, F. Sekiguchi +9
Excitation by light pulses enables the manipulation of phases of quantum condensed matter. Here, we photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free…
Coupled dynamics of long-range and internal spin cluster order in CuOSeO
R. B. Versteeg, J. Zhu, C. Boguschewski +7
Cu triplet clusters form the relevant spin entity for the formation of long-range magnetic order in the cluster magnet CuOSeO. Using time-resolved Raman spectroscopy, w…
Optically driven collective spin excitations and magnetization dynamics in the Néel-type skyrmion host GaVS
P. Padmanabhan, F. Sekiguchi, R. B. Versteeg +5
GaVS is a multiferroic semiconductor hosting magnetic cycloid (Cyc) and Néel-type skyrmion lattice (SkL) phases with a broad region of thermal and magnetic stability. Here,…
Rate equation analysis on the dynamics of first-order exciton Mott transition
Fumiya Sekiguchi, Ryo Shimano
We performed a rate equation analysis on the dynamics of exciton Mott transition (EMT) with assuming a detailed balance between excitons and unbound electron-hole (e-h) pairs. Base…
Single-Shot Terahertz Time-Domain Spectroscopy in Pulsed High Magnetic Fields
G. Timothy Noe, Ikufumi Katayama, Fumiya Katsutani +10
We have developed a single-shot terahertz time-domain spectrometer to perform optical-pump/terahertz-probe experiments in pulsed, high magnetic fields up to 30 T. The single-shot d…