CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Magnetic properties of Co-doped SnO: first-principles calculations |
Tan Xing-Yi (谭兴毅), Chen Chang-Le (陈长乐), Jin Ke-Xin (金克新), Cao Xian-Sheng (曹先胜), Xing Hui (邢辉) |
Shaannxi Key Laboratory of Condensed Matter Structures and Properties, School of Science, Northwestern Polytechnical University, Xi'an 710072, China |
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Abstract Based on density functional theory calculations, the electronic and magnetic properties of Co-doped SnO are investigated. It is found that the spin-polarized state, with a magnetic moment of about 1.0 μB per Co-dopant, is more favorable in energy than the non-spin-polarized state. Moreover, the origin of the ferromagnetism in Co-doped SnO is found to be the double exchange mechanism. Our results indicate that Co-doped SnO is a possible candidate of the p-type spintronics material.
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Received: 07 June 2010
Revised: 11 January 2011
Accepted manuscript online:
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PACS:
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71.20.Nr
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(Semiconductor compounds)
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71.20.-b
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(Electron density of states and band structure of crystalline solids)
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74.25.Ha
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(Magnetic properties including vortex structures and related phenomena)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61078057 and 50702046), the Northwestern Polytechnical University "Aoxiang Star" Project, and the Northwestern Polytechnical University Foundation for Fundamental Research of China (Grant No. NPU-FFR-JC200821/JC201048). |
Cite this article:
Tan Xing-Yi (谭兴毅), Chen Chang-Le (陈长乐), Jin Ke-Xin (金克新), Cao Xian-Sheng (曹先胜), Xing Hui (邢辉) Magnetic properties of Co-doped SnO: first-principles calculations 2011 Chin. Phys. B 20 057101
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