paper

Indirect exchange interaction between magnetic adatoms in a monolayer MoS2

arXiv:1212.1318 · doi:10.1103/PhysRevB.87.125401

Abstract

We study the Ruderman-Kittle-Kasuya-Yosida (RKKY) interaction in a monolayer MoS. We show that the rotation of the itinerant electron spin due to the spin-orbit coupling causes a twisted interaction between two magnetic adatoms which consists of different RKKY coupling terms, the Heisenberg, Dzyaloshinsky-Moriya and Ising interactions. We find that the interaction terms are very sensitive to the Fermi energy values and change dramatically from doped to undoped systems. A finite doping causes that all parts of the interaction oscillate with the distance of two magnetic impurities, and the interaction behaves like for the long distance between two localized spins. We explore a beating pattern of oscillations of the RKKY interaction which occurs for the doped system.

Published version. To appear in Phys. Rev. B

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