Energy and momentum conservation in spin transfer
Alexander Mitrofanov, Sergei Urazhdin
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, orbital and spin dynamics of conduction electrons 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 of the driving electrons.
Topics & Concepts
PhysicsSpinsSpin (aerodynamics)Conservation lawAngular momentumSpin engineeringElectronMomentum transferSpin polarizationCondensed matter physicsScatteringQuantum mechanicsThermodynamicsMagnetic properties of thin filmsQuantum and electron transport phenomenaAdvanced Memory and Neural Computing