Unoccupied electronic state and ultra-fast electron dynamics on dope-controlled graphene

• Project/Area Number: 23740243
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Saga University
• Principal Investigator: TAKAHASHI Kazutoshi 佐賀大学, シンクロトロン光応用研究センター, 准教授 (30332183)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 表面・界面 / グラフェン / 光電子分光 / 2光子光電子分光 / 放射光 / レーザー / ２光子光電子分光

Research Abstract

Unoccupied electronic band structure and ultra-fast electron dynamics on graphite and epitaxial graphene grown on SiC have been studied by time- and angle-resolved photoemission and synchrotron radiation photoemission measurements. The momentum-resolved lifetime of IPS electrons on graphite and electron dynamics in 3.14* state of epitaxial graphene with the thickness between 1 and 3 MLs have been elucidated.

Research Products

• [Journal Article] Time-resolved two-photon photoemission study of silicon surface at initial stage of oxidation (2013)
  • Author(s): K. Takahashi, K. Ishibashi, Y. Kurahashi, M. Imamura, J. Azuma, M. Kamada
  • Journal Title: Appl. Surf. Sci Volume: 267 Pages: 154-154
  • DOI: 10.1016/j.apsusc.2012.08.117
  • Peer Reviewed
• [Journal Article] Electronic structures in unoccupied states of thin Bi film studied with two-photon photoemission spectroscopy (2013)
  • Author(s): M. Imamura, S. Fujimasa, K. Takahashi, I. Yamamoto, J. Azuma, M .Kamada
  • Journal Title: Appl. Surf. Sci Volume: 267 Pages: 66-66
  • DOI: 10.1016/j.apsusc.2012.07.002
  • Peer Reviewed
• [Journal Article] Unoccupied band dispersion of Si(111):√3×√3-Ag surface studied by time- and angle-resolved two-photon photoemission spectroscopy (2012)
  • Author(s): K. Takahashi, J. Azuma, and M. Kamada
  • Journal Title: J. Electron Spectrosc. Relat. Phenom. Volume: 185 Issue: 12 Pages: 547-551
  • DOI: 10.1016/j.elspec.2012.11.012
  • Peer Reviewed
• [Journal Article] Two-dimensional band dispersion and momentum-resolved lifetime of image-potential state on graphite studied by angle-resolved multi-photon photoemission spectroscopy (2012)
  • Author(s): Kazutoshi Takahashi, Junpei Azuma, and Masao Kamada
  • Journal Title: Phys. Rev. B Volume: 85 Issue: 7 Pages: 75325-75325
  • DOI: 10.1103/physrevb.85.075325
  • Peer Reviewed
• [Presentation] BiAg/Ag(111)表面の非占有電子状態 (2013)
  • Author(s): 今村真幸,遠藤修平,高橋和敏,山本勇,東純平,鎌田雅夫
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 東広島市
• [Presentation] Si(111)上 Ag ナノ薄膜の非占有量子化電子状態 (2013)
  • Author(s): Si(111)上 Ag ナノ薄膜の非占有量子化電子状態
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 東広島市
• [Presentation] SiC 上エピタキシャルグラフェンの 1 光子及び 2 光子光電子分光法による研究 (2013)
  • Author(s): 穴見峻平、於保遂大、高橋和敏、今村真幸、山本勇、東純平、鎌田雅夫
  • Organizer: 第26回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 名古屋市
• [Presentation] SiC上エピタキシャルグラフェンの1光子及び2光子光電子分光法による研究 (2013)
  • Author(s): 穴見峻平、於保遂大、高橋和敏、今村真幸、山本勇、東純平、鎌田雅夫
  • Organizer: 第26回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 名古屋市
• [Presentation] Si(111)上Agナノ薄膜の非占有量子化電子状態 (2013)
  • Author(s): 石橋一典，高橋和敏，今村真幸，東純平，山本勇，鎌田雅夫
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 東広島市
• [Presentation] BiAg/Ag(111)表面の非占有電子状態 (2013)
  • Author(s): 今村真幸，遠藤修平，高橋和敏，山本勇，東純平，鎌田雅夫
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 東広島市
• [Presentation] Study of Quantum Well States in Bi Thin Film by Two-photon Photoemission Spectroscopy (2012)
  • Author(s): M. Imamura, S. Fujimasa, K. Takahashi, I. Yamamoto, J. Azuma, M. Kamada, and H. Yasuda
  • Organizer: The 12th International Conference on Electron Spectroscopy and Structure (ICESS-12)
  • Place of Presentation: Saint-Malo, France.
• [Presentation] Excited Electronic States on Epitaxial Graphene Studied by Two-photon Photoemission Spectroscopy (2012)
  • Author(s): K. Takahashi, S. Anami, M. Imamura, I. Yamamoto, J. Azuma, and M. Kamada
  • Organizer: The 12th International Conference on Electron Spectroscopy and Structure (ICESS-12)
  • Place of Presentation: Saint-Malo, France
• [Presentation] SiC 上エピタキシャルグラフェンの 2 光子光電子分光 (2012)
  • Author(s): 高橋和敏,穴見峻平,今村真幸,東純平,山本勇,鎌田雅夫
  • Organizer: 日本物理学会 第67回年次大会
  • Place of Presentation: 西宮市
• [Presentation] Study of Quantum Well States in Bi Thin Film by Two-photon Photoemission Spectroscopy (2012)
  • Author(s): M. Imamura, S. Fujimasa, K. Takahashi, I. Yamamoto, J. Azuma, M. Kamada, and H. Yasuda
  • Organizer: The 12th International Conference on Electron Spectroscopy and Structure (ICESS-12)
  • Place of Presentation: Saint-Malo, France
• [Presentation] SiC上エピタキシャルグラフェンの2光子光電子分光 (2012)
  • Author(s): 高橋和敏，穴見峻平，今村真幸，東純平，山本勇，鎌田雅夫
  • Organizer: 日本物理学会 第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] グラファイト上の鏡像準位の時間分解角度分解 2 光子光電子分光 (2011)
  • Author(s): 高橋和敏,今村真幸,東純平,鎌田雅夫
  • Organizer: 日本物理学会 2011年秋季大会
  • Place of Presentation: 富山市
• [Presentation] グラファイト上の鏡像準位の時間分解角度分解2光子光電子分光 (2011)
  • Author(s): 高橋和敏，今村真幸，東純平，鎌田雅夫
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
• [Remarks] 佐賀大学シンクロトロン光応用研究センター 研究活動 研究業績
  • URL: http://www.slc.saga-u.ac.jp/research/papers2012