Abstract
Using the first principle projector augmented wave potential within the generalized gradient approximation as well as taking into account the on-site Coulomb repulsive interaction, the structure, magnetic and electronic properties of N-doped monoclinic ZrO2 have been studied. For N doping in different oxygen sites, the lattice constants a, b, c and monoclinic β angle are almost equal. The N-doped m-ZrO2 is a ferromagnetic half-metallic material. The total magnetic moment is mostly contributed by the N atom. Spin splitting occurs between the partial DOS of the up-spin and down-spin channels for N 2s and 2p states, as well as the hybridization appears between N 2p and O 2p states. The strong ionic bonding character in N-doped m-ZrO2 is revealed in the substantial charges transfer from Zr atoms to N and O atoms.
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