Energy and momentum conservation in spin transfer

Abstract

We utilize simulations of spin-polarized electron scattering by a chain of localized quantum spins to show that energy and linear momentum conservation laws impose strong constraints on the properties of magnetic excitations induced by spin transfer. In turn, electron's orbital and spin dynamics depends on the dynamical characteristics of the local spins. Our results suggest the possibility to achieve precise control of spin transfer-driven magnetization dynamics by tailoring the spectral characteristics of the magnetic systems and the driving electrons.

arXiv comment5 pages, 4 figures

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Cited by in corpus (9)

• Difference between angular momentum and pseudoangular momentum
• Spintronics meets density matrix renormalization group: Quantum spin torque driven nonclassical magnetization reversal and dynamical buildup of long-range entanglement
• Quantum many-body states and Green functions of nonequilibrium electron-magnon systems: Localized spin operators vs. their mapping to Holstein-Primakoff bosons
• Non-classical spin transfer effects in an antiferromagnet
• Quantum spin torque driven transmutation of antiferromagnetic Mott insulator
• Electron-mediated entanglement of two distant macroscopic ferromagnets within a nonequilibrium spintronic device
• Orbital angular momentum and current-induced motion of a Skyrmion-textured domain wall in a ferromagnetic nanotube
• Effects of the dynamical magnetization state on spin transfer
• Charge carrier relaxation dynamics in the one-dimensional Kondo lattice model