Abstract
Using the first-principles plane-wave pseudopotential method, the electronic structure and the ferromagnetism of Cr-doped rutile TiO 2 have been investigated. We find that the Cr-doped rutile TiO 2 shows half-metallic behavior in both generalized gradient approximation and local density approximation for the exchange-correlation potential. The half-metallicity originates from the hybridization of Cr 3d states and nearest-neighboring O 2p states. It may be useful in semiconductor spintronics and other applications.
Published Version
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