Ab-initio GMR and current-induced torques in Au/Cr multilayers

Abstract

We report on an {\em ab-initio} study of giant magnetoresistance (GMR) and current-induced-torques (CITs) in Cr/Au multilayers that is based on non-equilibrium Green's functions and spin density functional theory. We find substantial GMR due primarily to a spin-dependent resonance centered at the Cr/Au interface and predict that the CITs are strong enough to switch the antiferromagnetic order parameter at current-densities $\sim 100$ times smaller than typical ferromagnetic metal circuit switching densities.

8 pages, 6 figures

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• Anatomy of Spin-Transfer Torque
• ab initio modeling of open systems: charge transfer, electron conduction, and molecular switching of a C_{60} device
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• Spin transfer in an antiferromagnet
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Cited by in corpus (49)

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• Spin-polarized current in non-collinear antiferromagnets
• Spin transfer and current-induced switching in antiferromagnets
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• Spin-orbit coupling induced anisotropy effects in bimetallic antiferromagnets: A route towards antiferromagnetic spintronics
• Phenomenology of Current-Induced Dynamics in Antiferromagnets
• Superfluid spin transport through antiferromagnetic insulators
• Staggered Dynamics in Antiferromagnets by Collective Coordinates
• Antiferromagnetic Domain Wall Motion Induced by Spin Waves
• Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals
• Spin Insulatronics
• Spin-transfer torques in anti-ferromagnetic metals from first principles
• Néel Spin Currents in Antiferromagnets
• Current-induced torques due to compensated antiferromagnets
• Antiferromagnetic Tunnel Junctions for Spintronics
• Current-Induced Torques in Magnetic Metals: Beyond Spin Transfer
• Dynamics of noncollinear antiferromagnetic textures driven by spin current injection
• Spin Transfer Torque in Antiferromagnetic Spin-Valves: From Clean to Disordered Regimes
• Prospect for antiferromagnetic spintronics
• First-principles spin-transfer torque in CuMnAs$|$GaP$|$CuMnAs junctions
• Dephasing of Transverse Spin Current in Ferrimagnetic Alloys
• Spin-transfer torques in antiferromagnets: efficiency and quantification method
• Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets
• Magnetization damping in noncollinear spin valves with antiferromagnetic interlayer couplings
• Mode-Dependent Damping in Metallic Antiferromagnets Due to Inter-Sublattice Spin Pumping
• Field-like spin orbit torque in ultra-thin polycrystalline FeMn films
• Robust spin-transfer torque and magnetoresistance in non-collinear antiferromagnetic junctions
• Ultrafast antiferromagnetic switching in NiO induced by spin transfer torques
• The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions
• Spin diffusion and torques in disordered antiferromagnets
• Spin torque and waviness in magnetic multilayers: a bridge between Valet-Fert theory and quantum approaches
• Multi-scale modelling of current-induced switching in magnetic tunnel junctions using ab initio spin transfer torques
• Spin Orbit Torque in two dimensional Antiferromagnetic Topological Insulators
• Antiferromagnetic Magnonic Crystals
• A simple descriptor for energetics at fcc-bcc metal interfaces
• Soliton-like magnetization textures in non-collinear antiferromagnets
• Multiscale approach to spin transport in magnetic multilayers
• Chirality Sensitive Domain Wall Motion in Spin-Orbit Coupled Ferromagnets
• Electron transport through antiferromagnetic spin textures and skyrmions in a magnetic tunnel junction
• Complete $T_c$ suppression and Néel triplets-mediated exchange in antiferromagnet-superconductor-antiferromagnet trilayers
• Cross effect of magnetic field and charge current on antiferromagnetic dynamics
• Electric control of antiferromagnets
• Coupling magneto-elastic Lagrangians to spin transfer torque sources
• Strain tuned magnetotransport of Jeff=1/2 antiferromagnetic Sr2IrO4 thin films
• Large-amplitude spin oscillations triggered by nonequilibrium strongly correlated $t_{2g}$ electrons
• Electrical Control of the Exchange Bias Effect at Model Ferromagnet-Altermagnet Junctions
• Gate-dependent spin-torque in a nanoconductor-based spin-valve
• Spin-transport, spin-torque and memory in antiferromagnetic devices: Part of a collection of reviews on antiferromagnetic spintronics
• Local spin transfer torque and magnetoresistance in domain walls with variable width