Abstract
Based on first-principles calculations, we have studied the occurrence of spin polarization in the magnetic metal oxide SnO 2 doped with nonmagnetic nitrogen (N) impurities. It was found that the local magnetic moments are localized mainly on the N dopant, causing a total moment of 0.95 μ B per cell. The long-range magnetic coupling of N-doped SnO 2 may be attributed to a p – p coupling interaction between the N impurity and host valence states.
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