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The correlation between structure and magnetism of Ni-implanted TiO2 annealed at different temperatures |
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| Authors: | Binfeng Ding Fengfeng ChengFeng Pan Tao FaShude Yao Kay PotzgerShengqiang Zhou |
| Affiliation: | a State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China b Department of Physics and Electronic Information, Langfang Teachers College, Langfang 065000, China c Department of Physics, Shanxi University of Technology, Hanzhong 723001, China d Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), P.O.Box 510119, Dresden 01314, Germany |
| Abstract: | In this paper, the structural and magnetic properties of Ni metal implanted TiO2 single crystals are discussed. Ni nanocrystals (NCs) have been formed in TiO2 after ion implantation. Their crystallite sizes increased with increasing post-annealing temperature. Metallic Ni nanocrystals inside the TiO2 matrix are stable up to an annealing temperature of 1073 K. The Ni NCs formed inside TiO2 make the major contribution to the measured ferromagnetism. |
| Keywords: | Diluted magnetic oxide Ion implantation TiO2 |
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