TY  - JOUR
AU  - Kim, Junyeon
AU  - Uzuhashi, Jun
AU  - Horio, Masafumi
AU  - Senoo, Tomoaki
AU  - Go, Dongwook
AU  - Jo, Daegeun -
AU  - Sumi, Toshihide
AU  - Wada, Tetsuya
AU  - Matsuda, Iwao
AU  - Ohkubo, Tadakatsu
AU  - Mitani, Seiji
AU  - Lee, Hyun-Woo
AU  - Otani, YoshiChika
TI  - Oxide layer dependent orbital torque efficiency in ferromagnet/Cu/oxide heterostructures
JO  - Physical review materials
VL  - 7
IS  - 11
SN  - 2475-9953
CY  - College Park, MD
PB  - APS
M1  - FZJ-2024-00559
SP  - L111401
PY  - 2023
AB  - The utilization of orbital transport provides a versatile and efficient spin manipulation mechanism. As interest in orbital-mediated spin manipulation grows, we face a new issue to identify the underlying physics that determines the efficiency of orbital torque (OT). In this study, we systematically investigate the variation of OT governed by orbital Rashba-Edelstein effect at the Cu/oxide interface, as we change the oxide material. We find that OT varies by a factor of ∼2, depending on the oxide. Our results suggest that the active electronic interatomic interaction (hopping) between Cu and the oxygen atom is critical in determining OT. This also gives us an idea of what type of material factors is critical in forming a chiral orbital Rashba texture at the Cu/oxide interface.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001110065400002
DO  - DOI:10.1103/PhysRevMaterials.7.L111401
UR  - https://juser.fz-juelich.de/record/1021105
ER  -