Magnetic behavior in zinc oxide zigzag nanoribbons.

Botello-Méndez, Andrés R; López-Urías, Florentino; Terrones, Mauricio; Terrones, Humberto · Nano Lett · 2008

basic_science · Level V

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Abstract

We use first principles calculations to investigate the magnetic properties of zinc oxide nanoribbons with zigzag-terminated edges. The polarized spin density of states is calculated as a function of the nanoribbons width and thickness. All nanoribbons formed by a single layer exhibit a magnetic behavior independently of the width. By analyzing the charge density and spin density, we determine that the oxygen-dominated edge exhibits unpaired spins. When the thickness of the ribbons is increased, a magnetic moment is observed only for specific thicknesses.

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