TY  - JOUR
AU  - Bose, Arnab
AU  - Kammerbauer, Fabian
AU  - Gupta, Rahul
AU  - Go, Dongwook
AU  - Mokrousov, Yuriy
AU  - Jakob, Gerhard
AU  - Kläui, Mathias
TI  - Detection of long-range orbital-Hall torques
JO  - Physical review / B
VL  - 107
IS  - 13
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2024-00558
SP  - 134423
PY  - 2023
AB  - We report and quantify a large orbital-Hall torque generated by Nb and Ru, which we identify from the strong dependence of torques on the ferromagnets. This is manifested as strong enhancement in the dampinglike torques measured in Nb (or Ru)/Ni bilayers as compared to Nb (or Ru)/FeCoB bilayers including the sign reversal in the case of Nb/(Ni or FeCoB) samples. We experimentally observe a striking enhancement of the measured torques with the increase of ferromagnetic Ni thickness which is markedly different from the regular spin-transfer torque; this could be a unique signature of long-range action of the orbital-Hall torques.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000974595900001
DO  - DOI:10.1103/PhysRevB.107.134423
UR  - https://juser.fz-juelich.de/record/1021104
ER  -