Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5449987 | Physica E: Low-dimensional Systems and Nanostructures | 2017 | 6 Pages |
Abstract
The role of localized defects as they pertain to ferromagnetism in SiC, which contains only s and p electrons, is important but unclear. Here, room temperature, macroscopic magnetization is induced and can be tuned in 6H-SiC using 14N+ ion implantation. First-principles density functional theory computation results confirm that 14N+ ion implantation can enhance the ferromagnetic ordering of the local magnetic moments caused by vacancy and substitution defects. The calculated magnetization values in the energetically favored ferromagnetic ordering (1.47-2.93Â emu/g for several vacancy and substitution defects) are larger than our experimental values (0.25Â emu/g at 5Â K and 0.08Â emu/g at 300Â K), but the result is qualitatively in agreement.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xiujie He, Jie Tan,