Results 1 to 10 of about 41,876 (287)

Collective skyrmion motion under the influence of an additional interfacial spin-transfer torque [PDF]

open access: yesScientific Reports, 2022
Here we study the effect of an additional interfacial spin-transfer torque, as well as the well-established spin–orbit torque and bulk spin-transfer torque, on skyrmion collections—group of skyrmions dense enough that they are not isolated from one ...
Callum R. MacKinnon   +7 more
doaj   +2 more sources

Magnetisation switching dynamics induced by combination of spin transfer torque and spin orbit torque [PDF]

open access: yesScientific Reports, 2022
We present a theoretical investigation of the magnetisation reversal process in CoFeB-based magnetic tunnel junctions (MTJs). We perform atomistic spin simulations of magnetisation dynamics induced by combination of spin orbit torque (SOT) and spin ...
Andrea Meo   +3 more
doaj   +2 more sources

Nonresonant amplification of spin waves through interface magnetoelectric effect and spin-transfer torque [PDF]

open access: yesScientific Reports, 2021
We present a new mechanism for manipulation of the spin-wave amplitude through the use of the dynamic charge-mediated magnetoelectric effect in ultrathin multilayers composed of dielectric thin-film capacitors separated by a ferromagnetic bilayer ...
Piotr Graczyk, Maciej Krawczyk
doaj   +2 more sources

Theory of current-induced angular momentum transfer dynamics in spin-orbit coupled systems

open access: yesPhysical Review Research, 2020
Motivated by the importance of understanding various competing mechanisms to the current-induced spin-orbit torque on magnetization in complex magnets, we develop a theory of current-induced spin-orbital coupled dynamics in magnetic heterostructures. The
Dongwook Go   +9 more
doaj   +2 more sources

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   +3 more sources

Nanoscale interface confinement of ultrafast spin transfer torque driving non-uniform spin dynamics [PDF]

open access: yesNature Communications, 2017
Fundamental understanding of ultrafast spin dynamics is crucial for spintronics applications. Here the authors demonstrate an ultrafast technique to explore the inhomogeneous THz spin dynamics in Fe/Au/Fe multilayers triggered by spin transfer torque.
Ilya Razdolski   +7 more
doaj   +2 more sources

Effect of spin relaxations on the spin mixing conductances for a bilayer structure

open access: yesScientific Reports, 2018
The spin current can result in a spin-transfer torque in the normal-metal(NM)—ferromagnetic-insulator(FMI) or normal-metal(NM)—ferromagnetic-metal(FMM) bilayer.
D. X. Li   +3 more
doaj   +2 more sources

Spin transfer torque driven higher-order propagating spin waves in nano-contact magnetic tunnel junctions [PDF]

open access: yesNature Communications, 2018
Nano-contact-based spin wave generation may enable high-frequency magnonic devices but has been limited to long wavelengths and weak signal strengths.
A. Houshang   +10 more
doaj   +2 more sources

Electric and thermal spin transfer torques across ferromagnetic/normal/ferromagnetic graphene junctions

open access: yesNew Journal of Physics, 2020
We investigate the spin transfer torque (STT) driven by electric bias voltages across and temperature gradients through ferromagnetic/normal/ferromagnetic graphene junctions.
Zhi Ping Niu, Meng Meng Wu
doaj   +1 more source

Finite Element Approach for the Simulation of Modern MRAM Devices

open access: yesMicromachines, 2023
Because of their nonvolatile nature and simple structure, the interest in MRAM devices has been steadily growing in recent years. Reliable simulation tools, capable of handling complex geometries composed of multiple materials, provide valuable help in ...
Simone Fiorentini   +7 more
doaj   +1 more source

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