Monday, December 3, 2012

1211.7287 (Bin Shao et al.)

Ab initio study of magnetic anisotropy in cobalt doped zinc oxide with

Bin Shao, Min Feng, Hong Liu, Jian Wu, Xu Zuo
Based on first-principles calculation, it has been predicted that the magnetic anisotropy energy (MAE) in Co-doped ZnO (Co:ZnO) depends on electron-filling. Results show that the charge neutral Co:ZnO presents a "easy plane" magnetic state. While modifying the total number of electrons, the easy axis rotates from in-plane to out-of-plane. The alternation of the MAE is considered to be the change of the ground state of Co ion, resulting from the relocating of electrons on Co d-orbitals with electron-filling.
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