2012 Fiscal Year Final Research Report
Preparation and characterization of ferromagnetic carbon nano-particles based on the graphene edge states
| Project/Area Number |
22310070
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Meijo University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | ナノ炭素 / ナノ材料 / ジグザグエッジ / グラフェン |
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| Research Abstract |
Ferromagnetic carbon nano-particles can be prepared by the laser vaporization of a carbon powder in a hydrogen containing atmospheric pressure of Ar at high temperature. However, we cannot exclude a possibility of that such ferromagnetism is originated in the impurity iron containing in the carbon powder with the order 100 ppm. As a fact, it was found that the ferromagnetic feature disappeared when the impurity iron level lowered less than 10 ppm. On the other hand, we have succeeded to catch a very weak signal possibly based on the zig-zag edges formed in a highly nitrogen doped graphene film. This will be a clue for verifying the intrinsic carbon ferromagnetism.
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