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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…
Cooling Dynamics of Photoexcited Carriers in Si Studied by Using Optical Pump and Terahertz Probe Spectroscopy
Takeshi Suzuki, Ryo Shimano
We investigated the photoexcited carrier dynamics in Si by using optical pump and terahertz probe spectroscopy in an energy range between 2 meV and 25 meV. The formation dynamics o…
Electrically driven spin excitation in a ferroelectric magnet DyMnO_3
N. Kida, Y. Ikebe, Y. Takahashi +7
Temperature (5--250 K) and magnetic field (0--70 kOe) variations of the low-energy (1--10 meV) electrodynamics of spin excitations have been investigated for a complete set of ligh…
Study of ortho-to-paraexciton conversion in CuO by excitonic Lyman spectroscopy
M. Kubouchi, K. Yoshioka, R. Shimano +2
Using time-resolved - excitonic Lyman spectroscopy, we study the orthoexciton-to-paraexcitons transfer, following the creation of a high density population of ultracold $1s…