2013 Fiscal Year Final Research Report
Magnetization of Mn - dope nanoclustor diamond using physical vapor deposition
| Project/Area Number |
24710121
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Kyushu University |
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Principal Investigator |
TOMINAGA Aki 九州大学, 総合理工学研究科(研究院), 助教 (50590551)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | ナノダイヤモンド / 微結晶 / 粉末 / 磁性材料 / 放射光材料評価 / 電子顕微鏡材料評価 / 物理成長気相法 / プラズマ |
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| Research Abstract |
It was demonstrated that the new method employing a coaxial arc plasma gun is a new promising candidate for the forming single-digit nanometer diamond particles easily.
We have succeeded the fabrication of the vacuum chamber specialized for powder preparation. The yield rate was approximately 0.4 mg / min is 40 times the previous one. Cr-doped nanodiamond powder exhibited diamond 111 diffraction rings in the electron diffraction patterns and the existence of diamond grains was confirmed from dark-field TEM images. The SR-XRD patterns also exhibited peaks due to diamond. Diamond exists in this powder is verified sp3 component from SR-PES spectra. SR-PES The crystalline size was less than 10 nm. Results of XAFS and SQUID measurements show this Cr-doped nanodiamond powder is magnetic material.
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