Results 31 to 40 of about 2,882,123 (290)

Domain wall depinning from FM/AFM interface defects by spin-polarized current

open access: yesAIP Advances, 2022
We report a theoretical investigation of the impact of spin-transfer torque on magnetic head-to-head domain walls of Fe and Ni80Fe20 (Permalloy PyTM) nanowires exchange coupled to a two-sublattice uniaxial antiferromagnetic substrate.
F. A. L. Andrade   +5 more
doaj   +1 more source

Rogue waves in the continuous Heisenberg spin chain with time-dependent bilinear interaction and spin-transfer torque

open access: yesPartial Differential Equations in Applied Mathematics, 2022
We consider the continuous Heisenberg spin chain equation S→t=α(t)S→×S→xx+β(t)S→x,S→⋅S→=1,where α(t)and β(t)are the parameters to describe the bilinear interaction, and the spin-transfer torque resulted from the spin-polarized current, respectively.
Juan-Juan Qi, Yu-Juan Zhang, Dun Zhao
doaj   +1 more source

A spin torque meter with magnetic facet domains

open access: yesNature Communications, 2018
Spin torques with different origins enable the magnetic domain wall motion, but the contributions are hard to be distinguished. Here, the authors show the method to measure both spin-magnetization transfer torque and spin–orbit torque by using mountain ...
Kyoung-Woong Moon   +8 more
doaj   +1 more source

Spin-Transfer and Exchange Torques in Ferromagnetic Superconductors [PDF]

open access: yesPhysical Review Letters, 2012
We consider how superconducting correlations influence spin-transfer torques in ferromagnetic superconductors. It is demonstrated that there is a novel torque arising from particle-hole interference that depends on the U(1) phase associated with the superconducting order parameter.
Linder, Jacob   +3 more
openaire   +4 more sources

Spin transfer torque with spin diffusion in magnetic tunnel junctions [PDF]

open access: yes, 2012
Spin transport in magnetic tunnel junctions in the presence of spin diffusion is considered theoretically. Combining ballistic tunneling across the barrier and diffusive transport in the electrodes, we solve the spin dynamics equation in the metallic ...
Manchon, Aurelien   +7 more
core   +1 more source

Non-equilibrium spatial distribution of Rashba spin torque in ferromagnetic metal layer

open access: yesAIP Advances, 2012
We study the spatial distribution of spin torque induced by a strong Rashba spin-orbit coupling (RSOC) in a ferromagnetic (FM) metal layer, using the Keldysh non-equilibrium Green's function method.
N. L. Chung, M. B. A. Jalil, S. G. Tan
doaj   +1 more source

Resonant Spin-Transfer-Torque Nano-Oscillators [PDF]

open access: yesPhysical Review Applied, 2017
9 pages, 10 figures and Supplementary ...
Sharma, Abhishek   +2 more
openaire   +2 more sources

Spin-torque quantization and microwave sensitivity of a nano-sized spin diode

open access: yesEPJ Web of Conferences, 2018
Rectification of microwave signal by the spin-torque diode is very promising for its practical applications in microwave imaging. This is due to a very high sensitivity of magnetic tunnel junction under the bias current, which was previously demonstrated
Demin Gleb, Popkov Anatoly
doaj   +1 more source

Precession coupled spin current in spin torque driven magnetic tunnel junctions

open access: yesAIP Advances, 2021
A spin-torque switchable magnetic tunnel junction contains two ferromagnetic electrodes across a barrier that supports spin-polarized tunnel current.
Jonathan Z. Sun
doaj   +1 more source

Spin torque on the surface of graphene in the presence of spin orbit splitting

open access: yesAIP Advances, 2013
We study theoretically the spin transfer torque of a ferromagnetic layer coupled to (deposited onto) a graphene surface in the presence of the Rashba spin orbit coupling (RSOC). We show that the RSOC induces an effective magnetic field, which will result
Ji Chen   +2 more
doaj   +1 more source

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