| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2010: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
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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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