2013 Fiscal Year Final Research Report
Theoretical Studies of Boundary Effects on Electronic Properties of Graphene and Related-Materials
| Project/Area Number |
23310083
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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 |
Nanomaterials/Nanobioscience
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
WAKABAYASHI KATSUNORI 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 (50325156)
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| Co-Investigator(Kenkyū-buntansha) |
OKADA Susumu 筑波大学大学院, 数理物質科学研究科, 教授 (70302388)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | グラフェン / 理論 / ナノリボン / エッジ状態 / 磁性 / 原子膜 / 遷移金属ダイカルコゲナイド系物質 / 電子輸送 |
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| Research Abstract |
In this research program, we have investigated the effect of edge and interface on the electronic properties of graphene and its related materials using theoretical and computational techniques. It is found that the peculiar spin-polarized states which appear near the edge boundaries show vanishing charge and magnetic excitation gaps by the carrier doping, i.e. metallic magnetic states. It is also found that graphene corner edges have magic corner angles in which zero-energy edge state disappear. Furthermore, we have developed Boltzmann theory for carrier transport mechanism in graphene double-layer systems. Our work will serve for designing carbon-based electronic devices.
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Research Products
(45 results)
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[Presentation]2011
Author(s)
K. Wakabayashi (WPI-MANA/NIMS)
Organizer
UK-Japan Graphene Conference
Place of Presentation
Lakeside Hotel Windermere, Lake District, UK
Year and Date
20111115-18
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