Study of fundamental properties arising from graphene edgestates

• Project/Area Number: 21540319
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Kyoto University
• Principal Investigator: ARAI Toshikazu 京都大学, 低温物質科学研究センター, 助教 (80333318)
• Co-Investigator(Renkei-kenkyūsha): SAWADA Anju 京都大学, 低温物質科学研究センター, 教授 (90115577) ; TERASHIMA Takahito 京都大学, 低温物質科学研究センター, 教授 (40252506) ; FUKUDA Akira 兵庫医科大学, 医学部, 准教授 (70360633)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: グラフェン / ディラックフェルミオン / エッジ状態 / グラフェンナノリボン / ラマン分光 / Dバンド / ナノグラフェン / サイズ効果 / 微細加工 / 半導体 / ナノリボン

Research Abstract

Graphene samples of long and narrow shape(graphene nannoribbons : GNR) were prepared and inspected by Raman spectroscopy. The Raman spectra were classified into two groups, depending on individual samples. The difference in the spectrum is caused by the difference in the edge structures. It is remarkable that the GNR samples whose D band peak is absent are GNRs with long zigzag edge structure.

Research Products

• [Journal Article] Activation energy gap of the layer-imbalanced bilayerν=1/3quantum Hall states (2010)
  • Author(s): A. Fukuda, T. Sekikawa, K. Iwata, Y. Ogasawara, T. Arai, Z. F. Ezawa, and A. Sawada
  • Journal Title: Physica E Volume: 42 Pages: 1046-1049
  • Peer Reviewed
• [Journal Article] Activation energy gap of the layer-imbalanced bilayer v=1/3 quantum Hall states (2010)
  • Author(s): A.Fukuda, T.Sekikawa, K.Iwata, Y.Ogasawara, T.Arai, Z.F.Ezawa, A.Sawada
  • Journal Title: Physics E Volume: 42 Pages: 1046-1049
  • Peer Reviewed
• [Journal Article] Activationenergygapofthelayer-imbalancedbilayer ν=1/3 quantum Hall states (2010)
  • Author(s): A.Fukuda, T.Sekikawa, K.Iwata, Y.Ogasawara, T.Arai, Z.F.Ezawa
  • Journal Title: Physica E 42 Pages: 1046-1049
  • Peer Reviewed
• [Journal Article] Conductivity Measurement of Helium Surface Electronin the Coexistence of Adsorbed 2DAtomic Hydrogen Gas (2009)
  • Author(s): T. Arai, S. Yamanaka, H. Yayama, A. Fukuda, and A. Sawada
  • Journal Title: J. Phys.: Conference Series Volume: 150
  • Peer Reviewed
• [Journal Article] Linewidth Broadening in Edge-magnetoplasmon Resonance of Helium Surface State Electrons
  • Author(s): T. Arai, S. Yamanaka, H. Yayama, A. Sawada, and A. Fukuda
  • Journal Title: J. Phys.: Conference Series
  • Peer Reviewed
• [Journal Article] Activated transport in theν=1 bilayer quantum Hall states with small tunneling energyΔSAS=1 K
  • Author(s): A. Fukuda, D. Terasawa, T. Morikawa, Y. D. Zheng, T. Arai, Z. F. Ezawa, and A. Sawada
  • Journal Title: J. Phys.: Conference Series
  • Peer Reviewed
• [Journal Article] Linewidth Broadening in Edge-magnetoplasmon Resonance of Helium Surface State Electrons
  • Author(s): T.Arai, S.Yamanaka, H.Yayama, A.Sawada, A.Fukuda
  • Journal Title: J.Phys. : Conference Series Volume: (掲載予定)(掲載確定)
  • Peer Reviewed
• [Journal Article] Activated tranport in the v=1 bilayer quantum Hall states with small tunneling energy ΔSAS=1K
  • Author(s): A.Fukuda, D.Terasawa, T.Morikawa, Y.D.Zheng, T.Arai, Z.F.Ezawa, A.Sawada
  • Journal Title: J.Phys. : Conference Series Volume: (掲載予定)(掲載確定)
  • Peer Reviewed
• [Presentation] ジグザグ端グラフェンナノリボンのラマン分光 (2012)
  • Author(s): 西中川良平, 新井敏一, 寺嶋孝仁, 澤田安樹, 松田一成
  • Organizer: 第10回京都大学低温物質科学研究センター研究交流会
  • Place of Presentation: 京都大学百周年時計台記念館国際交流ホール
  • Year and Date: 2012-03-09
• [Presentation] Raman spectroscopy on the zigzag graphene nanoribbon (2012)
  • Author(s): 西中川良平, 新井敏一, 寺嶋孝仁, 澤田安樹, 松田一成
  • Organizer: 京都大学グローバルCOEプログラム「普遍性と創発性から紡ぐ次世代物理学」全体シンポジウム
  • Place of Presentation: 京都大学百周年時計台記念館国際交流ホール
  • Year and Date: 2012-02-14
• [Presentation] Linewidth Broadening in Edge-magnetoplasmon Resonance of Helium Surface State Electrons (2011)
  • Author(s): T. Arai, S. Yamanaka, H. Yayama, A. Sawada, and A. Fukuda
  • Organizer: 26th International Conference on Low Temperature Physics(LT26)
  • Place of Presentation: Beijing International Convention Center, Beijing, China
  • Year and Date: 2011-08-16
• [Presentation] Activated transport in theν=1 bilayer quantum Hall states with small tunneling energy (2011)
  • Author(s): A. Fukuda, D. Terasawa, T. Morikawa, Y. D. Zheng, T. Arai, Z. F. Ezawa, and A. Sawada
  • Organizer: 26th International Conference on Low Temperature Physics(LT26)
  • Place of Presentation: Beijing International Convention Center, Beijing, China
  • Year and Date: 2011-08-16
• [Presentation] Linewidth Broadening in Edge-magnetoplasmon Resonance of Helium Surface State Electrons (2011)
  • Author(s): T.Arai, S.Yamanaka, H.Yayama, A.Sawada, A.Fukuda
  • Organizer: 26th International Conference on Low Temperature Physics
  • Place of Presentation: Beijing International Convention Center, Beijing, China
  • Year and Date: 2011-08-16
• [Presentation] Activated tranport in the v=1 bilayer quantum Hall states with small tunneling energy ΔSAS=1K (2011)
  • Author(s): A.Fukuda, D.Terasawa, T.Morikawa, Y.D.Zheng, T.Arai, Z.F.Ezawa, A.Sawada
  • Organizer: 26th International Conference on Low Temperature Physics
  • Place of Presentation: Beijing International Convention Center, Beijing, China
  • Year and Date: 2011-08-16
• [Presentation] Activation study of the v=1/3 bilayer quantum Hall states in the vici nity of single layer limit (2010)
  • Author(s): A.Fukuda, T.Sekikawa, K.Iwata, Y.Ogasawara, Y.D.Zheng, T.Morikawa, S.Tsuda, T.Arai, Z.F.Ezawa, A.Sawada
  • Organizer: The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology (HMF-19)
  • Place of Presentation: Fukuoka International Congress Center, Fukuoka, Japan
  • Year and Date: 2010-08-02
• [Presentation] Comparison of the magnetoresistance hysteresis between bilayer v=4/3 and monolayer v=2/3 quantum Hall states (2010)
  • Author(s): S.Tsuda, A.Fukuda, Y.D.Zheng, T.Morikawa, T.Arai, A.Sawada
  • Organizer: The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology (HMF-19)
  • Place of Presentation: Fukuoka International Congress Center, Fukuoka, Japan
  • Year and Date: 2010-08-02
• [Presentation] Observation of the magnetoresistance hysteresis caused by the dynamic nuclear polarization around the v=4/3 and v=2/3 bilayer quantum Hall effects (2010)
  • Author(s): S.Tsuda, A.Fukuda, Y.D.Zheng, T.Morikawa, T.Arai, A.Sawada
  • Organizer: The 6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI)
  • Place of Presentation: The University of Tokyo, Tokyo, Japan
  • Year and Date: 2010-08-02
• [Presentation] Excited States of Spins and Pseudospins in the v=2/3 Bilayer Quantum Hall Systems (2010)
  • Author(s): Y.D.Zheng, T.Morikawa, A.Fukuda, S.Tsuda, T.Arai, Z.F.Ezawa, A.Sawada
  • Organizer: 30th International Conference on the Physics of Semiconductors (ICPS 2010)
  • Place of Presentation: COEX, Seoul, Korea
  • Year and Date: 2010-07-29
• [Presentation] Effects of the in-plane magnetic fields on excitations of the v=1/3 bilayer quantum Hall states in the vicinity of single layer (2010)
  • Author(s): A.Fukuda, T.Sekikawa, K.Iwata, Y.Ogasawara, Y.D.Zheng, T.Morikawa, S.Tsuda, T.Arai, Z.F.Ezawa, A.Sawada
  • Organizer: 30th International Conference on the Physics of Semiconductors (ICPS 2010)
  • Place of Presentation: COEX, Seoul, Korea
  • Year and Date: 2010-07-29
• [Presentation] Unexpected resonance line shape broadening of edge-magneto plasmons of 2DES on helium (2010)
  • Author(s): T.Arai
  • Organizer: Quantum Engineering with Electrons on Helium
  • Place of Presentation: Princeton University, NJ, USA
  • Year and Date: 2010-05-21
• [Presentation] 液面電子系における閉じ込めポテンシャルがエッジマグネトプラズモン振動モードに及ぼす影響 (2010)
  • Author(s): 新井敏一, 山中修司, 西中川良平, 矢山英樹, 福田昭, 澤田安樹
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2010-03-22
• [Presentation] 化学的手法によるグラフェンナノリボン試料作成と評価 (2010)
  • Author(s): 西中川良平, 新井敏一, 寺嶋孝仁, 福田昭, 澤田安樹
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2010-03-20
• [Presentation] ヘリウム液面電子閉じ込めポテンシャルとエッジマグネトプラズモン共鳴線幅の関係 (2009)
  • Author(s): 新井敏一, 山中修司, 磯山総一郎, 西中川良平, 矢山英樹, 福田昭, 澤
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学黒髪キャンパス
  • Year and Date: 2009-09-27