Spin-orbit-proximitized ferromagnetic metal by monolayer transition metal dichalcogenide: Atlas of spectral functions, spin textures, and spin-orbit torques in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Co</mml:mi><mml:mo>/</mml:mo><mml:msub><mml:mi>MoSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mrow><mml:mi>Co</mml:mi><mml:mo>/</mml:mo><mml:msub><mml:mi>WSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>, and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Co</mml:mi><mml:mo>/</mml:mo><mml:msub><mml:mi>TaSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> heterostructures
Kapildeb Dolui, Branislav K. Nikolić
Abstract
The authors demonstrate how to screen computationally heterostructures of ultrathin layers of conventional ferromagnetic metals and monolayers of transition-metal dichalcogenides, using first-principles Green functions and first-principles quantum transport techniques in order to find an optimal manifestation of the spin-orbit proximity effect within a ferromagnetic metal and the corresponding spin-orbit torque on its magnetization once the current is passed through the heterostructures. This approach identifies the Co/WSe${}_{2}$ bilayer as a potentially optimal heterostructure for spintronic applications based on effects that require large current-driven nonequilibrium spin density.
Topics & Concepts
Condensed matter physicsMaterials scienceSpintronicsHeterojunctionFerromagnetismMonolayerBilayerMagnetizationTransition metalSpin (aerodynamics)Non-equilibrium thermodynamicsFerromagnetic resonanceSpin pumpingMetalFerromagnetic material propertiesSpin currentTorqueSpin polarizationQuantumMagnetic momentMagnetism2D Materials and ApplicationsHeusler alloys: electronic and magnetic propertiesTopological Materials and Phenomena