Recently, the orbital generation in weak spin-orbit coupling systems was reported. In this study, we investigate the spin-orbit torque of a nonmagnet/ferromagnet bilayer, where the nonmagnet is Pt, Mn, and Pt 0.5 Mn 0.5 alloy, and the ferromagnet is Fe, Co, and Ni. The highest SOT ...
where the integer m labels the orbital angular momentum quantum number, k is the momentum along the z direction and χi’s denote the amplitudes corresponding to the three sublattices. Here, we investigate the electronic behaviour at a given value of radius ρ, namely ρ=R, such that the ...
The antisymmetric part of the energy–momentum tensor quantifies the torque exerted on a fluid cell that gives rise to conversion between the spin and orbital components of the angular momentum. Since the spin density is not a strictly conserved quantity, spin hydrodynamics should be understood as...
We have engineereda PMA [Co/Ni]3 FM on selected OHE layers (Ru, Nb, Cr) and investigated the potential of theoretically predicted larger orbital Hall conductivity (OHC) to quantify the torque and switching current in OHE/[Co/Ni]3 stacks. Our results demonstrate a ~30% enhancement in ...
Recent theory revealed that orbital Hall effect creates orbital current, which can be much larger than spin Hall-induced spin current. However, orbital current cannot directly exert a torque on a ferromagnet, requiring a conversion process from orbital current to spin current. Here, we report two...
A first spin torque layer is disposed between the spin Hall layer and the trailing shield. A second spin torque layer is disposed between the spin Hall layer and the main pole.Suping SongZhanjie LiTerence LamLijie Guan
This spin orbital torque-type magnetization rotation element (10) is provided with: a spin orbital torque wiring (2) that extends in a first direction (x); a first ferromagnetic layer (1) that is laminated in a second direction (z) intersecting the spin orbital torque wiring; and a first...
The spin orbital torque structure includes a spin torque layer having a first side and a second side at a media facing surface. A first spin Hall layer is along the first side of the spin torque layer. A second spin Hall layer is along the second side of the spin torque layer. The ...
SPIN ORBITAL TORQUE MAGNETIZATION REVERSAL ELEMENT, MAGNETIC MEMORY AND HIGH FREQUENCY MAGNETIC DEVICEPROBLEM TO BE SOLVED: To provide a spin orbital torque magnetization reversal element capable of facilitating magnetization reversal.SASAKI TOMOO佐々木 智生...
As a result, a magnetic helicity term appeared in a new torque equation for S, so that one-half of the phase shift derived from the helicity term was equivalent to the Faraday rotation angle. However, the orbital angular momentum L had no relation to the Faraday rotation. It was thus ...