Opening a transport gap in graphene induced by strain-induced gauge fields

• Project/Area Number: 25286021
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials engineering
• Research Institution: University of Tsukuba
• Principal Investigator: KANDA Akinobu 筑波大学, 数理物質系, 准教授 (30281637)
• Co-Investigator(Renkei-kenkyūsha): AGO Hiroki 九州大学, 先導物質科学研究所, 准教授 (10356355) ; OOTUKA Youiti 筑波大学, 数理物質系, 教授 (50126009)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000); Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2013: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
• Keywords: ナノ材料 / グラフェン / 電界効果トランジスタ / 格子ひずみ / 伝導ギャップ / バンドギャップ / 歪み効果 / 擬似磁場

Outline of Final Research Achievements

Graphene, two dimensional crystal of carbon atoms, has a special property that conduction electrons feel (pseudo) vector potentials in graphene under lattice strain. Theories tell that tailored strain produces a transport gap, so that the strain engineering is attractive for the realization of high-performance graphene transistors. In this research, we have developed several techniques which allow us to investigate electron transport in graphene field effect devices with tailored strain. We have confirmed formation of transport gaps in graphene with two types of strain configurations, (1) uniaxial local strain and (2) periodic uniaxial strain (strain superlattice), for the first time.

Research Products

• [Presentation] Semiconducting Electron Transport in Graphene Induced by Periodic Uniaxial Strain (2016)
  • Author(s): Rineka Hiraide, Hiroki Sonoda, Shoma Higuchi, Hikari Tomori, Akinobu Kanda
  • Organizer: Seventeenth International Conference on the Science and Application of Nanotubes and Low-dimensional Materials
  • Place of Presentation: University of Vienna (Austria)
  • Year and Date: 2016-08-07
  • Int'l Joint Research
• [Presentation] Introducing Uniaxial Local Strain to Graphene Encapsulated with hBN (2016)
  • Author(s): Hikari Tomori, Rineka Hiraide, Youiti Ootuka, Kenji Watanabe, Takashi Taniguchi, and Akinobu Kanda
  • Organizer: Seventeenth International Conference on the Science and Application of Nanotubes and Low-dimensional Materials
  • Place of Presentation: University of Vienna (Austria)
  • Year and Date: 2016-08-07
  • Int'l Joint Research
• [Presentation] Strain-induced Semiconducting Electron Transport in Graphene Field Effect Devices (2016)
  • Author(s): Shoma Higuchi, Hiroki Rineka Hiraide, Hiroki Sonoda, Shoma Higuchi, Hikari Tomori, Akinobu Kanda
  • Organizer: The 43rd International Symposium on Compound Semiconductors (ISCS)
  • Place of Presentation: 富山国際会議場(富山県富山市）
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] Introducing Uniaxial Local Strain to Graphene Encapsulated with hBN (2016)
  • Author(s): Hikari Tomori, Rineka Hiraide, Youiti Ootuka, Kenji Watanabe, Takashi Taniguchi, and Akinobu Kanda
  • Organizer: The 43rd International Symposium on Compound Semiconductors (ISCS)
  • Place of Presentation: 富山国際会議場(富山県富山市）
  • Year and Date: 2016-06-27
  • Int'l Joint Research
• [Presentation] Introducing lattice strain to graphene encapsulated in hBN (2016)
  • Author(s): H. Tomori, R. Hiraide, Y. Ootuka, K. Watanabe, T. Taniguchi, A. Kanda
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore Convention Center (USA)
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] Electron Transport in Densely-Packed Graphene Nanoribbons Formed on a CorrugatedSiC Surface (2015)
  • Author(s): H. Tanaka, K. Fukuma, K. Morita, S. Hayashi, T. Kajiwara, A. Visikovskiy, S. Tanaka, A. Kanda
  • Organizer: International Symposium on Advanced Nanodevices and Nanotechnology (ISANN 2015)
  • Place of Presentation: Hilton Waikoloa Village (USA)
  • Year and Date: 2015-11-29
  • Int'l Joint Research
• [Presentation] Inducing Strain to Encapsulated Graphene (2015)
  • Author(s): H. Tomori, R. Hiraide, Y. Ootuka, K. Watanabe, H. Taniguchi, A. Kanda
  • Organizer: International Symposium on Advanced Nanodevices and Nanotechnology (ISANN 2015)
  • Place of Presentation: Hilton Waikoloa Village (USA)
  • Year and Date: 2015-11-29
  • Int'l Joint Research
• [Presentation] Inducing Strain to Encapsulated Graphene (2015)
  • Author(s): H. Tomori, R. Hiraide, Y. Ootuka, K. Watanabe, H. Taniguchi and A. Kanda
  • Organizer: 28th International Microprocesses and Nanotechnology Conference
  • Place of Presentation: 富山国際会議場(富山県富山市）
  • Year and Date: 2015-11-10
  • Int'l Joint Research
• [Presentation] SiC傾斜面に形成されたグラフェンナノリボンの電気伝導 (2015)
  • Author(s): 田中宏和, 福間洸平, 森田康平, 林真吾, 梶原隆司, A. Visikovskiy, 田中悟, 神田晶申
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス(大阪府吹田市）
  • Year and Date: 2015-09-16
• [Presentation] レジストナノ構造への転写によってひずみを導入したグラフェンの電気伝導 (2015)
  • Author(s): 平出璃音可, 友利ひかり, 大塚洋一, 神田晶申
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス(大阪府吹田市）
  • Year and Date: 2015-09-16
• [Presentation] BN上グラフェンへの局所1軸ひずみ導入法の開発 (2015)
  • Author(s): 友利ひかり, 平出璃音可, 大塚洋一, 林正彦, 吉岡英生, 渡辺賢司, 谷口尚, 神田晶申
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス(大阪府吹田市）
  • Year and Date: 2015-09-16
• [Presentation] SiCファセット上のグラフェン横方向超格子の形成と物性（１） (2015)
  • Author(s): 田中悟、福間洸平、林真吾、梶原隆司、Visikovskiy Anton1、飯盛拓嗣、家永紘一郎、矢治光一郎、中辻寛、小森文夫、田中宏和、神田晶申、Cuong Nguyen Thanh、岡田晋
  • Organizer: 第７６回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場(愛知県名古屋市)
  • Year and Date: 2015-09-13
• [Presentation] SiCファセット上のグラフェン横方向超格子の形成と物性（2） (2015)
  • Author(s): 福間洸平、林真吾、梶原隆司、Visikovskiy Anton、田中悟、飯盛拓嗣、家永紘一郎、矢治光一郎、中辻寛、小森文夫、田中宏和、神田晶申、Cuong Nguyen Thanh、岡田晋
  • Organizer: 第７６回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場(愛知県名古屋市)
  • Year and Date: 2015-09-13
• [Presentation] Formation of Graphene with Controlled Uniaxial Local Strain and Its Electron Transport (2015)
  • Author(s): R. Hiraide, H. Tomori, Y. Ootuka, and A. Kanda
  • Organizer: 21st International Conference on Electronic Properties of Two-Dimensional Systems
  • Place of Presentation: Sendai International Center(宮城県仙台市）
  • Year and Date: 2015-07-27
  • Int'l Joint Research
• [Presentation] Electron Transport in Graphene Nanoribbons Placed on a Corrugated SiC Surface (2015)
  • Author(s): H. Tanaka, K. Fukuma, K. Morita, S. Hayashi, T. Kajiwara, A. Visikovskiy, T. Iimori, K. Ienaga, K. Yaji, K. Nakatsuji, F. Komori, N. T. Cuong, S. Okada, S. Tanaka, and A. Kanda
  • Organizer: 21st International Conference on Electronic Properties of Two-Dimensional Systems
  • Place of Presentation: Sendai International Center(宮城県仙台市）
  • Year and Date: 2015-07-27
  • Int'l Joint Research
• [Presentation] Quasi-one-dimensional graphene nanostructure on corrugated SiC surfaces (2015)
  • Author(s): S. Tanaka, K. Fukuma, K. Morita, S. Hayashi, T. Kajiwara, A. Visikovskiy, T. Iimori, K. Ienaga, K. Yaji, K. Nakatsuji, F. Komori, H. Tanaka, A. Kanda, N. T. Cuong, and S. Okada
  • Organizer: 17th International Conference on Modulated Semiconductor Structures
  • Place of Presentation: Sendai International Center(宮城県仙台市）
  • Year and Date: 2015-07-27
  • Int'l Joint Research
• [Presentation] 電子デバイス応用に向けたグラフェン研究の最近の進展 (2015)
  • Author(s): 神田晶申
  • Organizer: 平成27年度TIMS研究交流会
  • Place of Presentation: 筑波大学(茨城県つくば市)
  • Year and Date: 2015-07-24
  • Invited
• [Presentation] Semiconducting characteristics in self-ordered quasi-one dimensional graphene lateral superlattice (2015)
  • Author(s): S. Tanaka, K. Fukuma, K. Morita, S. Hayashi, T. Kajiwara, A. Visikovskiy, T. Iimori, K. Ienaga, K. Yaji, K. Nakatsuji, F. Komori, H. Tanaka, A. Kanda, N. T. Cuong, and S. Okada
  • Organizer: The Sixteenth International Conference on the Science and Application of Nanotubes (NT15)
  • Place of Presentation: Nagoya University (愛知県名古屋市)
  • Year and Date: 2015-06-29
  • Int'l Joint Research
• [Presentation] Electron transport in graphene with one-dimensional local strain (2015)
  • Author(s): Hikari Tomori, Rineka Hiraide, Hirokazu Tanaka, Yu Ito, Kenta Katakura, Yoiti Ootuka, Akinobu Kanda
  • Organizer: Graphene Week 2015
  • Place of Presentation: University Place, University of Manchester (UK)
  • Year and Date: 2015-06-22
  • Int'l Joint Research
• [Presentation] 空間変化するひずみのあるグラフェンの電気伝導特性 (2015)
  • Author(s): 友利ひかり，平出璃音可，田中宏和，伊藤優，片倉健太，大塚洋一，神田晶申
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学（東京）
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 架橋構造のグラフェン・ナノリボンにおける形状による歪みのコントロール (2015)
  • Author(s): 林正彦，吉岡英生，友利ひかり，神田晶申
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学（東京）
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Strain-Engineered Electron Transport in Graphene (2015)
  • Author(s): Akinobu Kanda
  • Organizer: 2015 CENIDE-CNMM-TIMS Joint Symposium on Nanoscience and -technology
  • Place of Presentation: University of Duisburg-Essen (Germany)
  • Year and Date: 2015-03-16 – 2015-03-17
  • Invited
• [Presentation] Improved method of inducing local strain in graphene for FET application (2015)
  • Author(s): R. Hiraide, H. Tomori, Y. Ootuka, A. Kanda
  • Organizer: 2015 CENIDE-CNMM-TIMS Joint Symposium on Nanoscience and -technology
  • Place of Presentation: University of Duisburg-Essen (Germany)
  • Year and Date: 2015-03-16 – 2015-03-17
• [Presentation] SiC高指数面ファセット上に現れるグラフェン擬１次元構造 (2015)
  • Author(s): 林真吾，森田康平，梶原隆司，ビシコフスキー アントン，飯盛拓嗣，小森文夫，田中宏和，神田晶申，田中悟
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 東海大学（神奈川）
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] Electron transport in graphene with uniaxial local strain (2015)
  • Author(s): H. Tomori, R. Hiraide, H. Tanaka, Y. Ito, K. Katakura, Y. Ootuka and A. Kanda
  • Organizer: APS March Meeting 2015
  • Place of Presentation: Henry B. Gonzalez Convention Center (San Antonio, USA)
  • Year and Date: 2015-03-02 – 2015-03-06
• [Presentation] SiC上グラフェンの伝導測定 (2015)
  • Author(s): 神田晶申
  • Organizer: 第７回九大グラフェン研究会
  • Place of Presentation: 九州大学応用力学研究所
  • Year and Date: 2015-02-10
  • Invited
• [Presentation] ひずみ誘起ゲージ場を用いた単原子層膜の伝導制御とエレクトロニクス応用 (2014)
  • Author(s): 友利ひかり，平出璃音可，田中宏和，大塚洋一，神田晶申
  • Organizer: グラフェンの電気伝導に関する勉強会
  • Place of Presentation: 奈良女子大学
  • Year and Date: 2014-12-15
• [Presentation] Electron Transport in Graphene FETs with Small Spatial Variation of One-Dimensional Local Strain (2014)
  • Author(s): H. Tomori, R. Hiraide, H. Tanaka, K. Katakura, Y. Itou, Y. Ootuka and A. Kanda
  • Organizer: 27th International Microprocesses and Nanotechnology Conference (MNC2014)
  • Place of Presentation: ヒルトン福岡シーホーク(福岡市）
  • Year and Date: 2014-11-05 – 2014-11-07
• [Presentation] 周期的1軸ひずみを導入したグラフェン電界効果トランジスタ構造の作製と電気伝導評価 (2014)
  • Author(s): 平出璃音可，田中宏和，片倉健太，大塚洋一，友利ひかり，神田晶申
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] 緩やかに変化する1軸局所ひずみを導入したグラフェンの電気伝導特性 (2014)
  • Author(s): 友利ひかり，平出璃音可，田中宏和，大塚洋一，神田晶申
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] グラフェンにおける局所格子ひずみによる物性制御 (2014)
  • Author(s): 神田晶申
  • Organizer: 第82回表面科学研究会 原子膜研究の最前線
  • Place of Presentation: 東京工業大学
  • Year and Date: 2014-07-23
  • Invited
• [Presentation] Electron transport in graphene with one-dimensional local strain induced by dielectric nanostructures (2014)
  • Author(s): Akinobu Kanda, Hikari Tomori, Youiti Ootuka
  • Organizer: CECAM Workshop on graphene's strain engineering: Establishing connections between Condensed Matter Physics, Relativistic Quantum Field Theory, and Computational Mechanics
  • Place of Presentation: ETH, Zurich, Switzerland
  • Year and Date: 2014-07-14 – 2014-07-16
• [Presentation] Introduction of designed local strain to graphene using dielectric nanostructures (2014)
  • Author(s): Hikari Tomori, Youiti Ootuka, Akinobu Kanda
  • Organizer: CECAM Workshop on graphene's strain engineering: Establishing connections between Condensed Matter Physics, Relativistic Quantum Field Theory, and Computational Mechanics
  • Place of Presentation: ETH, Zurich, Switzerland
  • Year and Date: 2014-07-14 – 2014-07-16
• [Presentation] Relationship between Transport Properties and Raman Spectra in Electron Beam Irradiated Graphene (2014)
  • Author(s): Hikari Tomori
  • Organizer: APS March Meeting 2014
  • Place of Presentation: Denver (USA)
• [Presentation] グラフェンのラマンスペクトルと電気伝導特性の関係 (2014)
  • Author(s): 友利ひかり
  • Organizer: 第61回春季応用物理学会学術講演会
  • Place of Presentation: 青山学院大学（神奈川）
• [Presentation] グラフェンの電気伝導における形状効果について (2014)
  • Author(s): 林正彦
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学（神奈川）
• [Presentation] グラフェンの電気伝導特性とラマンスペクトルの関係 (2014)
  • Author(s): 友利ひかり
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学（神奈川）
• [Presentation] Comparison of Electron Transport in Graphene with Uniform and Nonuniform One-dimensional Strain (2013)
  • Author(s): Hikari Tomori
  • Organizer: The 40th International Symposium on Compound Semiconductors
  • Place of Presentation: Kobe (Japan)
• [Presentation] Electron transport in graphene with one dimensional local strain (2013)
  • Author(s): Hikari Tomori
  • Organizer: 20th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-20)
  • Place of Presentation: Wroclaw (Poland)
• [Presentation] Electronic transport measurement and Raman spectroscopy of e-beam irradiated graphene (2013)
  • Author(s): Hikari Tomori
  • Organizer: 5th International Conference on Recent Progress in Graphene Research (RPGR2013)
  • Place of Presentation: Tokyo (Japan)
• [Presentation] Introducing Nonuniform Strain to Graphene without e-beam Damage (2013)
  • Author(s): Hikari Tomori
  • Organizer: 2013 JSAP-MRS Joint Symposia
  • Place of Presentation: Kyoto (Japan)
• [Presentation] Relationship between Transport Properties and Raman Spectra in Graphene Field Effect Devices (2013)
  • Author(s): Hikari Tomori
  • Organizer: 2013 International Conference on Solid State Devices and Materials (SSDM 2013)
  • Place of Presentation: Fukuoka (Japan)
• [Presentation] Inducing Local Strain in Graphene without Direct E-beam Exposure (2013)
  • Author(s): Hikari Tomori
  • Organizer: 26th International Microprocesses and Nanotechnology Conference (MNC 2013)
  • Place of Presentation: Sapporo (Japan)
• [Presentation] Effect of Electron Beam Irradiation on Raman Spectra and Transport Properties in Graphene (2013)
  • Author(s): Akinobu Kanda
  • Organizer: 26th International Microprocesses and Nanotechnology Conference (MNC 2013)
  • Place of Presentation: Sapporo (Japan)
• [Presentation] Effect of electron beam irradiation on Raman spectra and transport properties in graphene (2013)
  • Author(s): Akinobu Kanda
  • Organizer: International Symposium on Advanced Nanodevices and Nanotechnology (ISANN 2013)
  • Place of Presentation: Kauai (USA)