A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Giant Spin‐Orbit Torque in Sputter‐Deposited Bi Films
Bismuth (Bi) has the strongest spin‐orbit coupling among non‐radioactive elements and is thus a promising material for efficient charge‐to‐spin conversion. However, previous electrical detections have reported controversial results for the conversion efficiency. In this study, an optical detection of a spin‐orbit torque is reported in a Bi/CoFeB bilayer with a polycrystalline texture of (012) and (003). Taking advantage of the optical detection, spin‐orbit torque is accurately separated from the Oersted field and achieves a giant damping‐like torque efficiency of +0.5, verifying efficient charge‐to‐spin conversion. This study also demonstrates a field‐like torque efficiency of −0.1. For the mechanism of the charge‐to‐spin conversion, the bulk spin Hall effect and the interface Rashba‐Edelstein effect are considered.
Giant Spin‐Orbit Torque in Sputter‐Deposited Bi Films
Bismuth (Bi) has the strongest spin‐orbit coupling among non‐radioactive elements and is thus a promising material for efficient charge‐to‐spin conversion. However, previous electrical detections have reported controversial results for the conversion efficiency. In this study, an optical detection of a spin‐orbit torque is reported in a Bi/CoFeB bilayer with a polycrystalline texture of (012) and (003). Taking advantage of the optical detection, spin‐orbit torque is accurately separated from the Oersted field and achieves a giant damping‐like torque efficiency of +0.5, verifying efficient charge‐to‐spin conversion. This study also demonstrates a field‐like torque efficiency of −0.1. For the mechanism of the charge‐to‐spin conversion, the bulk spin Hall effect and the interface Rashba‐Edelstein effect are considered.
Giant Spin‐Orbit Torque in Sputter‐Deposited Bi Films
Kim, Sumin (author) / Lee, Hyun‐Woo (author) / Choi, Gyung‐Min (author)
Advanced Science ; 10
2023-11-01
9 pages
Article (Journal)
Electronic Resource
English
Hardness of sputter deposited nanocrystalline Ni3Al thin films
| British Library Online Contents | 2007
Electron microscopic study of sputter-deposited Ir films
| British Library Online Contents | 2004
Direct current magnetron sputter-deposited ZnO thin films
| British Library Online Contents | 2011
Characterization of sputter-deposited 316L stainless steel films
| British Library Online Contents | 1992
Reactively sputter-deposited Mo-Ox-Ny thin films
| British Library Online Contents | 2002