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Surface reconstruction of nanocrystals with (a) 35, (b) 87, and (c) 147 atoms that present a spontaneous magnetization.
Surface reconstruction of nanocrystal with (a) 39, (b) 38, and (c) 88 atoms and where no spontaneous magnetization was observed.
Magnetization for the 87-atoms nanocrystal. (a) Difference of , showing that the magnetization is localized at the nanocrystal surface. (b) Radial distribution function, showing that the magnetization for this nanocrystal is mainly due to the oxygen atoms of the surface.
Total magnetization for nanocrystals with different sizes and structures. ZB, WZ, BC, and AC stand, respectively, for zinc blende, Wurtzite, bond centered, and atom centered.
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