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- W4289780666 abstract "One of the most important tasks in the development of high-performance spintronic devices is the preparation of two-dimensional (2D) magnetic layers with long-range exchange interactions. ${mathrm{MN}}_{4}$ embedded graphene $({mathrm{MN}}_{4}text{ensuremath{-}}mathrm{G})$ layers, with $mathrm{M}$ being transition metal elements, are experimentally accessible 2D layers which exhibit interesting magnetic properties. In this paper, by employing the spin-polarized density functional theory (SP-DFT), we study ${mathrm{MN}}_{4}text{ensuremath{-}}mathrm{G}$ layers with a special focus on the behavior of the indirect $mathrm{M}text{ensuremath{-}}mathrm{M}$ exchange interactions and demonstrate that the ${mathrm{MN}}_{4}text{ensuremath{-}}mathrm{G}$ layers with $mathrm{M}=mathrm{Fe}$, Mn, and Co, are 2D anisotropic magnetic layers with Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction. By examining the electronic configurations of the $mathrm{M}$ atoms for various $mathrm{M}text{ensuremath{-}}mathrm{M}$ spacers, we demonstrate that the RKKY interaction in such layers are tunable and exhibit an unusual, prolonged decay (${r}^{ensuremath{-}n}$, with $0.5ensuremath{le}nensuremath{le}2)$. In addition, we isnvestigate the influence of the ${mathrm{CuN}}_{4}$ moiety in the graphene host, and show that, in contrary to the other ${mathrm{MN}}_{4}text{ensuremath{-}}mathrm{G}$ layers, the 2D ${mathrm{CuN}}_{4}text{ensuremath{-}}mathrm{G}$ layer behaves as decoupled one-dimensional spin chains, regardless of the spacer lengths." @default.
- W4289780666 created "2022-08-04" @default.
- W4289780666 creator A5024592023 @default.
- W4289780666 creator A5063188474 @default.
- W4289780666 creator A5074372073 @default.
- W4289780666 date "2022-08-04" @default.
- W4289780666 modified "2023-10-17" @default.
- W4289780666 title "<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mi>MN</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math> embedded graphene layers: Tunable decay rate of the RKKY interaction" @default.
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