2009 Fiscal Year Final Research Report
Control of 3-dimensional nanostructures and quantum transport in low-dimensional graphite crystals
| Project/Area Number |
20686008
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied physics, general
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MORIYAMA Satoshi National Institute for Materials Science, 国際ナノアーキテクトニクス研究拠点, 独立研究者 (00415324)
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| Project Period (FY) |
2008 – 2009
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| Keywords | グラフェン / ナノ微細加工 / 量子ドット / 2重結合量子ドット / 単一電子輸送 |
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| Research Abstract |
We investigated the fabrication of nanostructures and its quantum transport in low-dimensional graphite crystals such as two-dimensional graphene and one-dimensional carbon nanotube structures toward future quantum nanodevices with novel functions. In this research, we established the nanofabrication process to control the structure of low-dimensional graphite crystals, and fabricated a coupled quantum dot device comprising two lateral quantum dots by applying a nanofabrication process to the graphene. Our experimental results indicate that the number of electrons in a quantum dot, the coupling state between the electrons, and other properties can be controlled artificially using external voltages in the fabricated quantum devices. Because this research shows the potential for development of integrated nanodevices using a new carbon material, it is expected to contribute to progress in the development of nano quantum devices.
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[Remarks] グラフェン2重結合量子ドットに関する研究成果は, 日刊工業新聞(2009年7/31付), 日経産業新聞(2009年7/24付), 化学工業日報(2009年7/13付, 7/22付社説)等で紹介された
