978 citations · 2.6k across the 37 of their papers we have counts for
37 papers
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…
Observation of gigantic spin conversion anisotropy in bismuth
Naoki Fukumoto, Ryo Ohshima, Motomi Aoki +9
Whilst the g-factor can be anisotropic due to the spin-orbit interaction (SOI), its existence in solids cannot be simply asserted from a band structure, which hinders progress on s…
Giant spin Hall angle in the Heusler alloy Weyl ferromagnet CoMnGa
L. Leiva, S. Granville, Y. Zhang +6
Weyl semimetals are playing a major role in condensed matter physics due to exotic topological properties, and their coexistence with ferromagnetism may lead to enhanced spin-relat…
Inplane spin orbit torque magnetization switching and its detection using the spin rectification effect at sub-GHz frequencies
Motomi Aoki, Ei Shigematsu, Ryo Ohshima +4
Inplane magnetization reversal of a permalloy/platinum bilayer was detected using the spin rectification effect. Using a sub GHz microwave frequency to excite spin torque ferromagn…
Detection of Ferromagnetic Resonance from 1 nm-thick Co
S. Yoshii, R. Ohshima, Y. Ando +2
To explore the further possibilities of nanometer-thick ferromagnetic films (ultrathin ferromagnetic films), we investigated the ferromagnetic resonance (FMR) of 1 nm-thick Co film…
Modulation of spin conversion in a 1.5 nm-thick Pd film by ionic gating
Shin-ichiro Yoshitake, Ryo Ohshima, Teruya Shinjo +2
Gate-induced modulation of the spin-orbit interaction (SOI) in a 1.5 nm-thick Pd thin film grown on a ferrimagnetic insulator was investigated. Efficient charge accumulation by ion…