Collective skyrmion motion under the influence of an additional interfacial spin-transfer torque [PDF]
Scientific 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
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Magnetisation switching dynamics induced by combination of spin transfer torque and spin orbit torque [PDF]
Scientific 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
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Nanoscale interface confinement of ultrafast spin transfer torque driving non-uniform spin dynamics [PDF]
Nature 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
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Nonresonant amplification of spin waves through interface magnetoelectric effect and spin-transfer torque [PDF]
Scientific 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
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Impact of Spin-Orbit Torque on Spin-Transfer Torque Switching in Magnetic Tunnel Junctions. [PDF]
Sci Rep, 2020 The paper presents our simulated results showing the substantial improvement of both switching speed and energy consumption in a perpendicular magnetic tunnel junction (p-MTJ), a core unit of Spin-Transfer-Torque Magnetic Random Access Memory (STT-MRAM),
Pathak S, Youm C, Hong J.
europepmc +2 more sources
Spin-Transfer Torques in Helimagnets [PDF]
Physical Review B, 2013 We theoretically investigate current-induced magnetization dynamics in chiral-lattice helimagnets. Spin-orbit coupling in non-centrosymmetric crystals induces a reactive spin-transfer torque that has not been previously considered. We demonstrate how the
Brataas, Arne, Hals, Kjetil M. D.
core +2 more sources
Theory of current-induced angular momentum transfer dynamics in spin-orbit coupled systems
Physical 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
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Non-equilibrium spatial distribution of Rashba spin torque in ferromagnetic metal layer
AIP 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
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Subterahertz ferrimagnetic spin-transfer torque oscillator [PDF]
Physical Review B, 2019 A theory of magnetization dynamics in ferrimagnetic materials with antiparallel aligned spin sub-lattices under action of spin-transfer torques (STT) is developed.
I. Lisenkov +4 more
semanticscholar +4 more sources
Spin-transfer torque generated in graphene based topological insulator heterostructures. [PDF]
Sci Rep, 2018 We studied the spin-transfer torque (STT) in graphene based normal-metal/topological-insulator/ferromagnet heterostructures (N/TI/F), which is induced by the helical spin-polarized current in the quantum spin Hall insulator.
Zhang Q, Chan KS, Li J.
europepmc +2 more sources