2012 Fiscal Year Final Research Report
Integrated quantum-dot devices and single-electron dynamics in graphene
| Project/Area Number |
22360147
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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 |
Electron device/Electronic equipment
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MORIYAMA Satoshi 独立行政法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA独立研究者 (00415324)
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| Project Period (FY) |
2010 – 2012
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| Keywords | グラフェン / 単電子素子 / 量子ドット / 量子デバイス / ナノ微細加工 |
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| Research Abstract |
Graphene nanostructures can be fabricated by carving out of graphene by using electron-beam lithography and reactive plasma etching process. The performance of such nanostructured devices, however, is expected to depend strongly on the sample quality, influence of the substrate, and the chemical nature of sample edges. Therefore, we propose and show one of the possible alternative device structures to probe the graphene nanostructures that the influence of the sample edges can be reduced and Dirac cones can be maintained. Low temperature electron-transport results revealed the evolution of the Coulomb blockade effect and quantum confinement, which are induced by both a uniform perpendicular magnetic field to the graphene sheets and an electrostatic surface-potential by the metal/graphene junction. These experimental results and theoretical analysis indicate that a Dirac-type particle is confined in our mesoscopic grapheme system.
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[Presentation] 2次元層状MoS2トランジスタ形成プロセスの検討2013
Author(s)
兼村瑠威, 森 貴洋, 渡辺英一郎, 津谷大樹, 森山悟士, 前田辰郎, 内田紀行 ,宮田典幸 ,安田哲二, 田中正俊, 安藤淳
Organizer
2013年第60回応用物理学会春季学術講演会
Place of Presentation
神奈川
Year and Date
20130327-30
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[Presentation] Inducing nonuniform strain to graphene using dielectric nanopillars: Toward strain engineering2011
Author(s)
H. Tomori, H. Goto, Y. Nukui, Y. Toyota, Y. Ootuka, K. Tsukagoshi, S. Moriyama, E. Watanabe, D. Tsuya and A. Kanda
Organizer
MRS2011, Materials Research Society 2011 Fall meeting
Place of Presentation
Boston, USA
Year and Date
20111128-1202
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[Presentation] Introducing nonuniform strain to graphene: Toward strain engineering2011
Author(s)
H. Tomori, H. Goto, Y. Nukui, Y. Toyota, Y. Ootuka, K. Tsukagoshi, S. Moriyama, E. Watanabe, D. Tsuya and A. Kanda
Organizer
SSDM2011, International Conference on Solid State Devices and Materials
Place of Presentation
Aichi, Japan
Year and Date
20110928-30
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