Magnetic Properties of Borophene Nanoribbons

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Magnetic Properties of Borophene Nanoribbons ( magnetic-properties-borophene-nanoribbons )

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opposite edges have opposite spin orientation, leading the total magnetization to be zero. In contrast, in the FM state, the edge spin configuration is FM-like, resulting in a non-zero magnetization. Figure 6 (a) shows the variation of the total magnetic moment in FM 8-ByNR as a function of the ribbon width Ny. The total magnetic moment increases from 1.22 μB (Ny = 4) to 1.80 μB (Ny = 12), peaking at 2.08 μB (Ny = 9). Figure 6. (a) Total magnetic moment of FM ByNR as a function of ribbon width Ny, and spin density distribution of (b) AFM 8-ByNR and (c) FM 8- ByNR. The blue and red represent spin up and spin down density, respectively. Apparently, the spontaneous magnetization of ByNRs is closely related to the edge states. As shown in Fig. 6 (b) and (c), the local magnetic moment is high on the edge atoms while it diminishes in the interior of ByNR. The profile of the local spin density strongly suggests that the dangling bonds

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