Article ID Journal Published Year Pages File Type
1594696 Solid State Communications 2010 5 Pages PDF
Abstract

The electronic structures and magnetic properties in Carbon-doped CeO2 have been investigated by means of first-principles calculations based on the LSDA+U scheme. The results demonstrate a magnetic moment of 2.00 μB per supercell with one Carbon dopant which mainly stems from Hund’s rule coupling based on rather localized 2p, 5d and 4f states. The hole-mediated long-range magnetic coupling between local magnetic moments can be attributed to the collective effects of the p–p, p–d, and p–f hybridizations between C and neighboring O or Ce atoms. Ferromagnetism and half-metallic characteristics of C-doped CeO2 make it possible to be an ideal material for spintronic devices.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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