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| Paper IPM / Physic / 12627 |
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We study the Ruderman-Kittle-Kasuya-Yosida (RKKY) interaction in a monolayer MoS2. We show that the rotation of the itinerant electron spin due to the spin-valley coupling causes a twisted interaction between
two magnetic adatoms which consists of different RKKY coupling terms, the Hiesenberg, Dzyaloshinsky-Moriya and Ising interactions. We also show that the interaction terms are very sensitive to the Fermi energy values and change dramatically from doped to undoped systems. We show that for a quite dilute electron doping, the Dzyaloshinsky-Moriya interaction always larger than the Hiesenberg
interaction. A finite doping causes that all parts of the
interaction oscillate with the distance of two magnetic impurities. We explore a beating pattern of oscillations of the RKKY interaction which occurs for the doped system.
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