Demonstration of negative refraction in grapheme pn junction

• Project/Area Number: 23656204
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electronic materials/Electric materials
• Research Institution: Hokkaido University
• Principal Investigator: YOH Kanji 北海道大学, 量子集積エレクトロニクス研究センター, 教授 (60220539)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 負の屈折 / クライン-トンネル / グラフェン / pn 接合 / pn接合 / ディラックフェルミオン / クライントンネリング / 負の屈折率 / ベセラゴレンズ / negative refraction

Research Abstract

The overall electrical measurement results indicate negative refraction overlapped with some interference pattern. The interference pattern is thought to come from multiple reflection of the injected electron waves. As a result

Research Products

• [Journal Article] Spin Injection into Epitaxial Graphene on Silicon Carbide (2013)
  • Author(s): Keita Konishi, Zhixin Cui, Takahiro Hiraki and Kanji Yoh
  • Journal Title: J.Crystal Growth Volume: in press
  • Peer Reviewed
• [Journal Article] Fabrication of Graphene Network via nanoimprint Technology (2012)
  • Author(s): Liumin Zoua1, Keita Konishia1, Morihisa Hogaa2 and Kanji Yoh
  • Journal Title: MRS Proceedings Volume: 1407
  • Peer Reviewed
• [Journal Article] Fabrication of Graphene Network via nanoimprint Technolog (2012)
  • Author(s): Liumin Zoua, Keita Konishia, Morihisa Hogaa and Kanji Yoh
  • Journal Title: MRS Proceedings Volume: 1407
  • Peer Reviewed
• [Journal Article] Fabrication of p-n-p graphene structure and observation of current oscillation (2011)
  • Author(s): Keita Konishi and Kanji Yoh
  • Journal Title: Jpn.J.Appl.Phys Volume: 50
  • Peer Reviewed
• [Journal Article] Proposal of Graphene Bandgap Control by Hexagonal Network Formation (2011)
  • Author(s): Liumin Zou, Keita Konishi, and Kanji Yoh
  • Journal Title: Jpn. J.Appl.Phys Volume: 50
  • Peer Reviewed
• [Journal Article] Fabrication of p-n-p graphene structure and observation of current oscillation (2011)
  • Author(s): Keita Konishi, Kanji Yoh
  • Journal Title: Jpn.J.Appl.Phys. Volume: 50
  • Peer Reviewed
• [Journal Article] Proposal of Graphene Bandgap Control by Hexagonal Network Formation (2011)
  • Author(s): Liumin Zou, Keita Konishi, Kanji Yoh
  • Journal Title: Jpn.J.Appl.Phys. Volume: 50
  • Peer Reviewed
• [Journal Article] Spin Injection into Epitaxial Graphene on Silicon Carbide
  • Author(s): Keita Konishi, Zhixin Cui, Takahiro Hiraki and Kanji Yoh
  • Journal Title: J.Crystal Growth Volume: (in press)
  • Peer Reviewed
• [Presentation] SiC上のエピタキシャルグラフェンへのスピン注入(III) (2013)
  • Author(s): 小西敬太、陽完治
  • Organizer: 第60回応用物理学会関係連合講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2013-03-27
• [Presentation] グラフェン中の量子輸送特性とトランジスタ応用-スピンデバイスへ向けて (2013)
  • Author(s): 陽完治
  • Organizer: 電子情報技術産業協会
  • Place of Presentation: 東京大手町
  • Year and Date: 2013-03-22
• [Presentation] SiC上のエピタキシャルグラフェンへのスピン注入(II) (2012)
  • Author(s): 小西敬太,陽完治
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学・松山大学
• [Presentation] グラフェンネットワークによるバンドギャップの制御(4) (2012)
  • Author(s): 鄒柳民,閻子威,小西敬太,法元盛久,陽完治
  • Organizer: 第59回応用物理学会関係連合講演会
  • Place of Presentation: 早稲田大学
• [Presentation] Spin Injection and Transport Characteristics of Single Layer Graphene Grown on 4H-SiC (2012)
  • Author(s): Kanji Yoh
  • Organizer: International Symposium on Graphene Devices (ISGD-3)
  • Place of Presentation: Paris, France
• [Presentation] Spin Injection into Epitaxial Graphene on Silicon Carbide (2012)
  • Author(s): Keita Konishi, Zhixin Cui, Takahiro Hiraki and Kanji Yoh
  • Organizer: International Conference on Molecular Beam Epitaxy (MBE)
  • Place of Presentation: Nara
• [Presentation] SiC 上のエピタキシャルグラフェンへのスピン注入(II) (2012)
  • Author(s): 小西 敬太，陽 完治
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学、松山
• [Presentation] Spin Injection and Transport Characteristics of Single Layer Graphene Grown on 4H-SiC (2012)
  • Author(s): Kanji Yoh
  • Organizer: International Symposium on Graphene Devices
  • Place of Presentation: Synchroton Soleil ( France)
• [Presentation] グラフェン中の量子伝導 (2011)
  • Author(s): 陽完治
  • Organizer: 早稲田大学各務記念材料技術研究所オープンセミナー「グラフェン研究の最前線」
  • Place of Presentation: 早稲田大学西早稲田キャンパス
  • Year and Date: 2011-10-28
• [Presentation] SiC上のエピタキシャルグラフェンへのスピン注入 (2011)
  • Author(s): 小西敬太、鄒柳民、閻子威、陽完治
  • Organizer: 第59回応用物理学会関係連合講演会
• [Presentation] Fabrication of Graphene Nanoribbon Network via Nanoimprint Lithography (2011)
  • Author(s): Liumin Zou, Keita Konishi, Morihisa Hoga and Kanji Yoh
  • Organizer: Materials Research Symposium (MRS), Hynes Convention Center
  • Place of Presentation: Boston, MA, U.S.A
• [Presentation] グラフェンネットワークによるバンドギャップの制御 (2011)
  • Author(s): 鄒柳民,閻子威,小西敬太,陽完治,石川幹雄,法元盛久
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
• [Presentation] グラフェンpn接合における弾道キャリアの屈折特性 (2011)
  • Author(s): 小西敬太,鄒柳民,陽完治
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学
• [Presentation] Magneto-resistancemeasurements of multi-layer graphene with spin polarized in parallel to current (2011)
  • Author(s): Keita Koishi, Tomotsugu Ishikura, Zhixin Cui, and Kanji Yoh
  • Organizer: 5th International Workshop on Spin Currents
  • Place of Presentation: Sendai International Center , Sendai
• [Presentation] Electron refraction at the pn junction in graphene (2011)
  • Author(s): Keita Konishi, Liumin Zou and Kanji Yoh
  • Organizer: The 19th International Conference on Electronic Properties of Two-Dimensional Electron Systems (EP2DS19)
  • Place of Presentation: National High Magnetic Field Lab, Tallahassee, Florida, U.S.A.
• [Presentation] Fabrication of GrapheneNanoribbonNetwork via Nanoimprint Lithography (2011)
  • Author(s): Liumin Zou, Keita Konishi, Morihisa Hoga, Kanji Yoh
  • Organizer: Materials Research Symposium
  • Place of Presentation: Hynes Convention Center, Boston, MA, U.S.A.
• [Presentation] Electron refraction at the pn junction in graphene (2011)
  • Author(s): Keita Konishi, Liumin Zou, Kanji Yoh
  • Organizer: The 19th International Conference on Electronic Properties of Two-Dimensional Electron Systems (EP2DS19)
  • Place of Presentation: Florida State University,Tallahassee, Florida, U.S.A.
• [Presentation] Magneto-resistance measurements of multi-layer graphene with spin polarized in parallel to current (2011)
  • Author(s): Keita Koishi, Tomotsugu Ishikura, Zhixin Cui, Kanji Yoh
  • Organizer: 5th International Workshop on Spin Currents
  • Place of Presentation: Sendai International Center, Sendai,Japan
• [Book] グラフェン薄膜トランジスタ (2012)
  • Author(s): 陽完治
  • Publisher: 株式会社エヌ・ティー・エス
• [Book] グラフェンが拓く材料の新領域 -物性作製法から実用化まで- (2012)
  • Author(s): 陽 完治
  • Total Pages: 233
  • Publisher: 株式会社エヌティーエス
• [Book] カーボンナノチューブ・グラフェンハンドブック（飯島澄男監修）分担執筆 (2011)
  • Author(s): 陽 完治
  • Total Pages: 356
  • Publisher: コロナ社
• [Remarks]
  • URL: http://www.rciqe.hokudai.ac.jp/spin/yoh/index.html