RKKY interaction and intervalley processes in p-doped transition metal dichalcogenides

Abstract

We study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in p-doped transition metal dichalcogenides such as MoS${}_2$ and WS${}_2$. We consider magnetic impurities hybridized to the Mo d-orbitals characteristic of the valence bands. Using the Matsubara Green's function formalism, we obtain the two-impurity interaction vs their separation and chemical potential of the system, accounting for the important angular dependence which reflects the underlying triangular lattice symmetry. The inclusion of the valence band valley at the $\Gamma$ point results in a strong enhancement of the interaction. Electron scattering processes transferring momentum between valleys at different symmetry points give rise to complex spatial oscillation patterns. Variable doping would allow the exploration of rather interesting behavior in the interaction of magnetic impurities on the surfaces of these materials, including the control of the interaction symmetry, which can be directly probed in STM experiments.

arXiv commentIncludes supplemental material

References in corpus (19)

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• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Quasiparticle band structures and optical properties of strained monolayer MoS2 and WS2
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• Analytical Expression for the RKKY Interaction in Doped Graphene
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• Indirect exchange interaction between magnetic adatoms in a monolayer MoS2
• Dynamic RKKY interaction in graphene
• RKKY interaction in gapped or doped graphene
• Spin susceptibility of two-dimensional transition metal dichalcogenides
• Gap-modulated doping effects on indirect exchange interaction between magnetic impurities in graphene

Cited by in corpus (15)

• Ruderman-Kittel-Kasuya-Yosida interaction in Weyl semimetals
• Lateral Interfaces of Transition Metal Dichalcogenides: A Stable Tunable One-Dimensional Physics Platform
• Non-Equilibrium RKKY Interaction in Irradiated Graphene
• Hybridization and anisotropy in the exchange interaction in 3D Dirac semimetals
• Velocity-determined anisotropic behaviors of RKKY interaction in 8-\textit{Pmmn} borophene
• Symmetries and hybridization in the indirect interaction between magnetic moments in MoS${}_2$ nanoflakes
• Interlayer RKKY Coupling in Bulk Rashba Semiconductors under Topological Phase Transition
• Noncollinear exchange interaction in transition metal dichalcogenide edges
• Indirect exchange interaction between magnetic adatoms in graphene
• Long range of indirect exchange interaction on the edges of MoS${}_2$ flakes
• Magnetism between magnetic adatoms on monolayer NbSe${}_2$
• Spin transport in n-type single-layer transition metal dichalcogenides
• An Origin of Dzyaloshinskii-Moriya Interaction at Graphene-Ferromagnet Interfaces Due to the Intralayer RKKY/BR Interaction
• Signature of Hanle Precession in Trilayer MoS2: Theory and Experiment
• Floquet Control of Indirect Exchange Interaction in Periodically Driven Two-Dimensional Electron Systems