Energy and momentum conservation in spin transfer

Article

关键词: MAGNETIZATION REVERSAL;    DRIVEN;    TORQUE;    WAVES;    EXCITATIONS;    MULTILAYER;   

DOI  :  10.1103/PhysRevB.102.184402

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free