2014 Fiscal Year Final Research Report
Experimental demonstration of magnetometory using electrically detected magnetic resonance in nitrogen centers in diamond
| Project/Area Number |
25886009
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural physics
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Keywords | ダイヤモンド半導体 / 電気的磁気共鳴検出 / 磁気センサー |
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| Outline of Final Research Achievements |
This study is to perform following three experiments for realization of magnetometry using defects in diamond. (1) We made an electrically detected magnetic resonance system for the realization of the magnetometry. We have not detected electron spins in nitrogen centers but carbon vacancies in diamond. (2) We demonstrated the control of orientations of nitrogen-vacancies in diamond to understand the crystal grown mechanism of diamond crystal doped with nitrogen. We have demonstrated more than 99 % of the NV centers have been aligned along the [111]-axis using a chemical-vapor deposited diamond thin film on a (111)diamond substrate. We also clarified the grown mechanism. (3) We demonstrated the spin-injection into diamond to understand the interaction between impurities in diamond and conduction electrons. We deposited a nickel-iron layer on a diamond substrate, and we have observed the inverse spin-Hall voltage in such a sample.
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| Free Research Field |
ナノ構造物理
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