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Conversion of spin current into charge current at room temperature: Inverse spin-Hall effect
The inverse process of the spin-Hall effect (ISHE), conversion of a spin current into an electric current, was observed at room temperature. A pure spin current was injected into a Pt thin film using…
Theory of current-driven domain wall motion: spin transfer versus momentum transfer.
A self-contained theory of the domain wall dynamics in ferromagnets under finite electric current is presented and the momentum-transfer effect dominates, and the threshold current for wall motion is proportional to V(0)/rho(w), V0 being the pinning potential.
Microscopic approach to current-driven domain wall dynamics
Resistivity due to a Domain Wall in Ferromagnetic Metal
The resistivity due to a domain wall in ferromagnetic metallic wire is calculated based on the linear response theory. The interaction between conduction electrons and the wall is expressed in terms…
Effective gauge field theory of spintronics
- G. Tatara
- PhysicsPhysica E: Low-dimensional Systems and…
- 10 December 2017
A brief review of field- and current-driven domain-wall motion
A brief review of field- and recently developed current-driven domain-wall motion in a ferromagnetic nanowire is presented from a theoretical point of view. In the first part, the wall motion driven…
Chirality-Driven Anomalous Hall Effect in Weak Coupling Regime
Anomalous Hall effect arising from non-trivial spin configuration (chirality) is studied treating perturbatively the exchange coupling to localized spins. Scattering by normal impurities is included.…
Current-induced magnetic vortex motion by spin-transfer torque
We investigate the dynamics of a magnetic vortex driven by spin-transfer torque due to spin current in the adiabatic case. The vortex core represented by collective coordinate experiences a…
Emergent Spin-Orbit Torques in Two-Dimensional Material/Ferromagnet Interfaces
Heterostructures of two-dimensional (2D) materials provide a testbed for interface-induced magnetic phenomena owing to their hybridized electronic structure with a strong interplay between spin and…
Thermal vector potential theory of transport induced by a temperature gradient.
- G. Tatara
- PhysicsPhysical review letters
- 2 February 2015
A microscopic formalism to calculate thermal transport coefficients is presented based on a thermal vector potential, whose time derivative is related to a thermal force, which indicates that the thermalvector potential couples to the energy current via the minimal coupling.