Correlation of the angular dependence of spin-transfer torque and giant magnetoresistance in the limit of diffusive transport in spin valves

Abstract

Angular variation of giant magnetoresistance and spin-transfer torque in metallic spin-valve heterostructures is analyzed theoretically in the limit of diffusive transport. It is shown that the spin-transfer torque in asymmetric spin valves can vanish in non-collinear magnetic configurations, and such a non-standard behavior of the torque is generally associated with a non-monotonic angular dependence of the giant magnetoresistance, with a global minimum at a non-collinear magnetic configuration.

4 pages, 3 figures, BRIEF REPORTS

References in corpus (10)

• Anatomy of Spin-Transfer Torque
• Spin Torques in Ferromagnetic/Normal Metal Structures
• Spin-transport in multi-terminal normal metal - ferromagnet systems with non-collinear magnetizations
• Shaped angular dependence of the spin transfer torque and microwave generation without magnetic field
• A self-consistent treatment of non-equilibrium spin torques in magnetic multilayers
• Spin-transfer in diffusive ferromagnet-normal metal systems with spin-flip scattering
• Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids
• Controlled normal and inverse magnetoresistance and current-driven magnetization switching in magnetic nanopillars
• Current-driven destabilization of both collinear configurations in asymmetric spin-valves
• Thermally Assisted Current-Driven Bistable Precessional Regimes in Asymmetric Spin Valves

Cited by in corpus (9)

• Spin torque and waviness in magnetic multilayers: a bridge between Valet-Fert theory and quantum approaches
• Multiscale approach to spin transport in magnetic multilayers
• Current-pulse-induced magnetic switching in standard and nonstandard spin-valves
• Current-induced dynamics of composite free layer with antiferromagnetic interlayer exchange coupling
• Sustained RF oscillations from thermally induced spin-transfer torque
• Spin-polarized currents driven by spin-dependent surface screening
• Nonlinear magnetotransport in dual spin valves
• Computational study of microwave oscillations in absence of external field in nonstandard spin valves in the diffusive transport limit
• Competition between Thickness and Electrical Conditioning Influence in Enhancing Giant Magnetoresistance Ratio for NiCoFe/Alq3/NiCoFe Spin Valve