Spin diffusion and magnetoresistance in ferromagnet/topological-insulator junctions

Abstract

We study spin and charge diffusion in metallic-ferromagnet/topological-insulator junctions. The coupled diffusion equations are derived perturbatively with respect to the strength of the interlayer tunneling. We calculate spin accumulation in the ferromagnet and junction magnetoresistance associated with a current bias along the interface.

7 pages, 1 figure

References in corpus (13)

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• Classification of topological insulators and superconductors in three spatial dimensions
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• Magnetic proximity effect in the 3D topological insulator/ferromagnetic insulator heterostructure
• Spin-Charge Locking and Tunneling into a Helical Metal
• Fluctuation-induced magnetization dynamics and criticality at the interface of a topological insulator with a magnetically ordered layer
• Mott scattering at the interface between a metal and a topological insulator

Cited by in corpus (11)

• Antidamping torque-induced switching in biaxial antiferromagnetic insulators
• Spin-Torque Generation in Topological-Insulator-Based Heterostructures
• Inducing magnetism onto the surface of a topological crystalline insulator
• Giant magnetoresistance in the junction of two ferromagnets on the surface of diffusive topological insulators
• Pure spin current devices based on ferromagnetic topological insulators
• Spin-charge transport driven by magnetization dynamics on disordered surface of doped topological insulators
• Edge spin transport in the disordered two-dimensional topological insulator WTe${}_2$
• Tunable spin-charge conversion through topological phase transitions in zigzag nanoribbons
• Thermal and electrical quantum Hall effects in ferromagnet-topological insulator-ferromagnet junction
• Voltage Controlled Magnetic Anisotropy Based Low Energy Switching of a Ferromagnet on a Topological Insulator
• Current response of a topological insulator to a static Zeeman field