Theoretical Study on Electronic and Spintronic Properties of Nano-Carbon Topology Material
Project/Area Number |
19710082
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Nanostructural science
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Research Institution | Hiroshima University |
Principal Investigator |
WAKABAYASHI Katsunori Hiroshima University, 国際ナノアーキテクトニクス研究拠点, 独立研究者 (50325156)
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Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
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Budget Amount *help |
¥3,520,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
|
Keywords | メゾスコピック物理 / ナノグラフェン / エッジ状態 / 量子輸送現象 / グラフェン / ナノリボン / 磁場特性 / 完全透過チャンネル / 理論 / グラフェンナノリボン / 電子輸送 / 完全伝導チャンネル / 量子細線 / 量子ポイントコンタクト / ナノグラファイト / ナノグラフェンリボン / アンダーーソン局在 |
Research Abstract |
In this research program, we have focused the effect of impurity, edge shape and magnetic field on the electronic transport properties of graphene nanoribbons using numerical and analytic techniques. It was shown that the physical quantities characterizing the electronic transport such as conductance and its fluctuation crucially depend on the edge shape and chirality of graphene nanoribbons. Also, we have found that disordered zigzag nanoribbon with long-ranged impurities whose range is larger than the lattice constant possesses a perfectly conducting channel, i.e. absence of Anderson localization in spite of the quasi-one dimensional systems.
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Report
(4 results)
Research Products
(82 results)
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[Presentation] グラフェンコーナーエッジの電子状態2010
Author(s)
下村祐司(A), 高根美武(A), 若林克法(B, C), 広大院先端物質(A), 物材機構(B), JSTさきがけ(C)
Organizer
日本物理学会
Place of Presentation
岡山大学
Year and Date
2010-03-23
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