Multiscale approach to spin transport in magnetic multilayers

Abstract

This article discusses two dual approaches to spin transport in magnetic multilayers: a direct, purely quantum, approach based on a Tight-Biding model (TB) and a semiclassical approach (Continuous Random Matrix Theory, CRMT). The combination of both approaches provides a systematic way to perform multi-scales simulations of systems that contain relevant physics at scales larger (spin accumulation, spin diffusion...) and smaller (specular reflexions, tunneling...) than the elastic mean free paths of the layers. We show explicitly that CRMT and TB give consistent results in their common domain of applicability.

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Cited by in corpus (11)

• CPP Magnetoresistance of Magnetic Multilayers: A critical review
• Spin-memory loss due to spin-orbit coupling at ferromagnet/heavy-metal interfaces: Ab initio spin-density matrix approach
• A unified drift-diffusion theory for transverse spin currents in spin valves, domain walls and other textured magnets
• Nonlocal Spin Dynamics in the Crossover from Diffusive to Ballistic Transport
• Robust spin transfer torque in antiferromagnetic tunnel junctions
• Thermo-magnonic diode: rectification of energy and magnetization currents
• Interplay between non equilibrium and equilibrium spin torque using synthetic ferrimagnets
• Non-Equilibrium Green's Function based Circuit Models for Coherent Spin Devices
• Sustained RF oscillations from thermally induced spin-transfer torque
• Micromagnetic simulations of spin-torque driven magnetisation dynamics with spatially resolved spin transport and magnetisation texture
• Current Perpendicular-to-Plane (CPP) Magnetoresistance (MR)