917 citations · 4k across the 56 of their papers we have counts for
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Circular photogalvanic effect in Cu/Bi bilayers
Hana Hirose, Naoto Ito, Masashi Kawaguchi +2
We have studied the circular photogalvanic effect (CPGE) in Cu/Bi bilayers. When a circularly polarized light in the visible range is irradiated to the bilayer from an oblique inci…
Optical detection of spin orbit torque and current induced heating
Yukihiro Marui, Masashi Kawaguchi, Masamitsu Hayashi
We have studied spin orbit torque in heavy metal (HM)/ferromagnetic metal (FM) bilayers using magneto-optical Kerr effect. A double modulation technique is developed to separate si…
Domain wall resistance in CoFeB-based heterostructures with interface Dzyaloshinskii-Moriya interaction
Yuto Ishikuro, Masashi Kawaguchi, Yong-Chang Lau +2
We have studied the domain wall resistance in W/Ta/CoFeB/MgO heterostructures. The Ta layer thickness is varied to control the type of domain walls via changes in the interfacial D…
Current-induced modulation of interfacial Dzyaloshinskii-Moriya interaction
Naoaki Kato, Masashi Kawaguchi, Yong-Chang Lau +3
The Dzyaloshinskii-Moriya (DM) interaction is an antisymmetric exchange interaction that is responsible for the emergence of chiral magnetism. The origin of the DM interaction, how…
Anomalous spin Hall magnetoresistance in Pt/Co bilayers
Masashi Kawaguchi, Daiki Towa, Yong-Chang Lau +2
We have studied the spin Hall magnetoresistance (SMR), the magnetoresistance within the plane transverse to the current flow, of Pt/Co bilayers. We find that the SMR increases with…
Interference induced enhancement of magneto-optical Kerr effect in ultrathin magnetic films
Satoshi Sumi, Hiroyuki Awano, Masamitsu Hayashi
We have studied the magneto-optical spectra of ultrathin magnetic films deposited on Si substrates coated with an oxide layer (SiOx). We find that the Kerr rotation angle and the e…