Reduction of defect-induced ferromagnetic stability in passivated ZnO nanowires |
(a) Top view of a bared ZnO NW with a diameter about 1.0 nm. (b) Top view of a ZnO NW passivated by pseudo-H atoms. (c) Side view of a bared ZnO NW. (d) Side view of a passivated ZnO NW with a 1× 1× 4 supercell. p1, p2, and p3 in (a) and (b) denote three inequivalent Zn positions. |