activity
20182025
most citedGiant spin Hall angle in the Heusler alloy Weyl ferromagnet CoMnGa

61 citations · 164 across the 11 of their papers we have counts for

collaborators

12 papers

cond-mat.mes-hall2025

Tunable Magnon Polaritons via Eddy-Current-Induced Dissipation in Metallic-Banded YIG Spheres

Tatsushi Uno, Shugo Yoshii, Sotaro Mae +4

We demonstrate a robust method to dynamically tune magnon dissipation in yttrium iron garnet spheres by equipping a metallic band around the sphere's equator, enabling precise cont…

cond-mat.mtrl-sci2024

Circular photogalvanic effect in an inversion-symmetry-broken bilayer germanium nanosheet

Taiki Nishijima, Ei Shigematsu, Ryo Ohshima +7

Spin-to-charge conversion in monolayer and bilayer germanium(Ge) nanosheets was demonstrated via the circular photogalvanic effect (CPGE). The CPGE current generated in a spin-spli…

cond-mat.mes-hall2023★ 21 cited

Ferroic Berry Curvature Dipole in a Topological Crystalline Insulator at Room Temperature

T. Nishijima, T. Watanabe, H. Sekiguchi +5

The physics related to Berry curvature is now a central research topic in condensed matter physics. The Berry curvature dipole (BCD) is a significant and intriguing condensed matte…

cond-mat.mes-hall2023★ 5 cited

Modulation of Hanle magnetoresistance in an ultrathin platinum film by ionic gating

Yuu Maruyama, Ryo Ohshima, Ei Shigematsu +2

Hanle magnetoresistance (HMR) is a type of magnetoresistance where interplay of the spin Hall effect, Hanle-type spin precession, and spin-dependent scattering at the top/bottom su…

cond-mat.mtrl-sci2022★ 14 cited

Anomalous sign inversion of spin-orbit torque in ferromagnetic/nonmagnetic bilayer systems due to self-induced spin-orbit torque

Motomi Aoki, Ei Shigematsu, Ryo Ohshima +3

Self-induced spin-orbit torques (SI-SOTs) in ferromagnetic (FM) layers have been overlooked when estimating the spin Hall angle (SHA) of adjacent nonmagnetic (NM) layers. In this w…

cond-mat.mes-hall2022★ 14 cited

All-electric spin device operation using the Weyl semimetal, WTe, at room temperature

Kosuke Ohnishi, Motomi Aoki, Ryo Ohshima +4

Topological quantum materials (TQMs) possess abundant and attractive spin physics, and a Weyl semimetal is the representative material because of the generation of spin polarizatio…