activity
20242026
collaborators

8 papers

physics.optics2026

Coexistence of Magnon-Induced Optical Vortex and Gaussian Beam Scattering Assisted by Rotational Umklapp Process

Ryusuke Hisatomi, Kotaro Taga, Hisakazu Matsuki +3

The exploitation of crystal-lattice symmetries to engineer angular momentum transfer between structured light and magnons marks a novel frontier for optomagnonic research. In Brill…

cond-mat.mtrl-sci2025

All-optical magnetization reversal via x-ray magnetic circular dichroism

Kihiro T. Yamada, Akira Izumi, Tetsuya Ikebuchi +15

Light polarization is one of the most fundamental features, equivalent to energy and coherence. Magnetism changes light polarization, and vice versa. The irradiation of intense cir…

cond-mat.supr-con2025

Observation of the crossover from quantum fluxoid to half-quantum fluxoid in a chiral superconducting device

Masashi Tokuda, Fumiya Matsumoto, Noriaki Maeda +16

Topological superconductors are one of the intriguing material groups from the viewpoint of not only condensed matter physics but also industrial application such as quantum comput…

physics.optics2025

Optical vortex generation by magnons with spin-orbit-coupled light

Ryusuke Hisatomi, Alto Osada, Kotaro Taga +5

Light possesses both spin and orbital angular momentum. In spatially asymmetric optical fields, these properties undergo spontaneous coupling, referred to as optical spin-orbit cou…

cond-mat.mtrl-sci2025

Néel vector rotation driven by spin-orbit torque in amorphous ferrimagnetic GdCo

Tetsuma Mandokoro, Yoichi Shiota, Tomoya Ito +5

Spin superfluidity, a phenomenon enabling low dissipative spin transport analogous to superfluidity in liquid helium and superconductivity in electronic systems, has remained a the…

cond-mat.mtrl-sci2025

Anomalous Nernst effect in Co thin films under laser irradiation

Soichiro Mochizuki, Itaru Sugiura, Tetsuya Narushima +3

The anomalous Nernst effect (ANE) generates electromotive forces transverse to temperature gradients and has attracted much attention for potential applications into alternative th…

cond-mat.mes-hall2024

Quantitative evaluation method for magnetoelastic coupling between surface acoustic waves and spin waves using electrical and optical measurements

Haruka Komiyama, Ryusuke Hisatomi, Kotaro Taga +6

Coupling and hybridization of different elementary excitations leads to new functionalities. In phononics and spintronics, magnetoelastic coupling between Rayleigh-type surface aco…

cond-mat.mtrl-sci2024

Spin-Orbit Torque-Assisted Detection of the Canted Magnetization Phase in a CoTb-Based Ferrimagnet

Maksim Stebliy, Zhimba Namsaraev, Michail Bazrov +8

Ferrimagnets have the potential to play a key role in spintronics due to their high stability, low energy consumption, and rapid magnetic state switching. These characteristics are…