Electrical Properties of nano-scale conductors connected to fixed electrodes

2009 Fiscal Year Final Research Report

• Project/Area Number: 17069004
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: University of Tsukuba
• Principal Investigator: OOTUKA Youiti University of Tsukuba, 大学院・数理物質科学研究科, 教授 (50126009)
• Co-Investigator(Kenkyū-buntansha): KANDA Akinobu 筑波大学, 大学院・数理物質科学研究科, 准教授 (30281637) ; TSUKAGOSHI Kazuhito 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, 主任研究者 (50322665)
• Project Period (FY): 2005 – 2009
• Keywords: ナノ電極 / 単分子計測 / 微細加工 / 量子伝導 / メカニカルブレークジャンクション / グラフェン / ナノ炭素材料 / ジョセフソン接合

Research Abstract

Deep understanding of the electrical conduction in the nano-domain is necessary to realize the molecule electronics, ultimate electric circuits that designate individual molecules as electronic parts. In this research, we have engaged in development of nano-gap electrodes and precise measurement of molecular conduction especially at low temperatures. We have determined the electron transmission coefficients, fundamental quantity that characterizes the molecular bridge, and found hydrogen and C_<60> form rather transparent molecular bridges. We also clarified peculiar conduction properties of graphene, a two-dimensional macromolecule.

Research Products

• [Journal Article] Resistance modulation of graphite/graphene film controlled by gate electric field (2010)
  • Author(s): H. Miyazaki, S. Li, A. Kanda, K. Tsukagoshi
  • Journal Title: Semiconductor Science and Technology 25 Pages: 034008/1-8
  • Peer Reviewed
• [Journal Article] Anisotropic transport in epitaxial graphene on SiC substrate with periodic nanofacets (2010)
  • Author(s): S. Odaka, H. Miyazaki, S, -L Li, A. Kanda, K. Morita, S. Tanaka, Y. Miyata, H. Kataura, K. Tsukagoshi, Y. Aoyagi
  • Journal Title: Applied Physics Letters 96 Pages: 062111/1-3
  • Peer Reviewed
• [Journal Article] Conduction-channel analysis of hydrogen-molecule bridge between superconducting electrodes (2009)
  • Author(s): Yuya Sakaguchi, Fumiaki Shimogishi, Manabu Watanabe, Yumiko Inui, Akibobu Kanda, Youiti Ootuka
  • Journal Title: J. Phys.: Conf. Ser. 150 Pages: 022069
  • Peer Reviewed
• [Journal Article] Gate control of spin transport in multipayer graphene (2008)
  • Author(s): H. Goto, A. Kanda, T. Sato, S. Tanaka, Y. Ootuka, S. Odaka, H. Miyazaki, K. Tsukagoshi, Y. Aoyagi
  • Journal Title: Appl. Phys. Lett. 92 Pages: 212110
  • Peer Reviewed
• [Journal Article] A different type of reentrant behavior in superconductor/ thin graphite film/ superconductor Josephson junctions (2008)
  • Author(s): T. Sato, A. Kanda, T. Moriki, H. Goto, S. Tanaka, Y. Ootuka, H. Miyazaki, S. Odaka, K. Tsukagoshi, Y. Aoyagi
  • Journal Title: Physica C 468 Pages: 797-800
  • Peer Reviewed
• [Journal Article] Superconducting proximity effect through graphene and graphite films (2008)
  • Author(s): M. Hayashi, H. Yoshioka, A. Kanda
  • Journal Title: Journal of Physics Conference Series 109 Pages: 012014
  • Peer Reviewed
• [Journal Article] Coulomb blockade oscillations in patterned ultra-thin graphite films (2008)
  • Author(s): S. Odaka, H. Miyazaki, T. Moriki, T. Sato, A. Kanda, K. Tsukagoshi, Y. Ootuka, Y. Aoyagi
  • Journal Title: Japanese Journal of Applied Physics 47 Pages: 697-699
  • Peer Reviewed
• [Journal Article] Coulomb blockade oscillations in narrow corrugated graphite ribbons (2008)
  • Author(s): H. Miyazaki, K. Tsukagoshi, S. Odaka, Y. Aoyagi, T. Moriki, T. Sato, A. Kanda, Y. Ootuka
  • Journal Title: Applied Physics Express 1 Pages: 024001/1-3
  • Peer Reviewed
• [Journal Article] Direct measurement of inter-layer screening length to electric field in thin graphite film (2008)
  • Author(s): H. Miyazaki, K. Tsukagoshi, S. Odaka, Y. Aoyagi, T. Sato, S. Tanaka, H. Goto, A. Kanda, Y. Ootuka
  • Journal Title: Applied Physics Express 1 Pages: 034007/1-3
  • Peer Reviewed
• [Journal Article] Electron transport in thin graphite films: Influence of microfabrication processes (2007)
  • Author(s): Takuya Moriki, Akinobu Kanda, Takashi Sato, Hisao Miyazaki, Shunsuke Odaka, Youiti Ootuka, Yoshinobu Aoyagi, Kazuhito Tsukagoshi
  • Journal Title: Physica E 40 Pages: 241-244
  • Peer Reviewed
• [Journal Article] Suppression of current hysteresis in carbon nanotube thin film transistors (2007)
  • Author(s): K. Tsukagoshi, M. Sekiguchi, Y. Aoyagi, T. Kanbara, T. Takenobu, Y. Iwasa
  • Journal Title: Japanese Journal of Applied Physics 46 Pages: L571-L573
  • Peer Reviewed
• [Journal Article] Simple and stable control of metallic break junction for the study of superconducting atomic point contact (2006)
  • Author(s): H. Miyazaki, A. Kanda, Y. Ootuka
  • Journal Title: Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology 05 Pages: 16-219
  • Peer Reviewed
• [Journal Article] Contact resistance modulation in carbon nanotube devices investigated by four-probe experiments (2006)
  • Author(s): T. Kanbara, T. Takenobu, T. Takahashi, K. Tsukagoshi, Y. Aoyagi, H. Kataura, Y. Iwasa
  • Journal Title: Applied Physics Letters 88 Pages: 053118/1-3
  • Peer Reviewed
• [Journal Article] Reproducible formation of nano-scale gap electrodes for single molecule measurements by combination of FIB deposition and tunnelling current detection (2006)
  • Author(s): K. Shigeto, M. Kawamura, A. Yu. Kasumov, K. Tsukagoshi, K. Kono, Y. Aoyagi
  • Journal Title: Microelectronic Engineering 83 Pages: 1471-1473
  • Peer Reviewed
• [Journal Article] ナノスケール物質電気伝導探索のためのナノギャップ電極作製と応用(依頼原稿) (2006)
  • Author(s): 塚越一仁, 重藤訓志, A. Kasumov, 川村稔, 青柳克信
  • Journal Title: 応用物理 75 Pages: 332-337
• [Journal Article] Simple and controlled fabrication of nanoscale gaps using double-angle evaporation (2005)
  • Author(s): Akinobu Kanda, Mitsuhiro Wada, Yoshihisa Hamamoto, Youiti Ootuka
  • Journal Title: Physica E 29 Pages: 707-711
  • Peer Reviewed
• [Journal Article] Proximity effect in a superconductor-metallofullerenesuperconductor molecular junction (2005)
  • Author(s): A. Yu. Kasumov, K. Tsukagoshi, M. Kawamura, T. Kobayashi, Y. Aoyagi, K. Senba, T. Kodama, H. Nishikawa, I. Ikemoto, K. Kikuchi, V.T. Volkov, Yu. A. Kasumov, R. Deblock, S. Gueron, H. Bouchiat
  • Journal Title: Physical Review B 72 Pages: 033414/1-4
  • Peer Reviewed
• [Presentation] Gate modulation of spin transport in multilayer graphene (invited) (2009)
  • Author(s): A. Kanda
  • Organizer: International IMR Workshop on Group IV Spintronics
  • Place of Presentation: Tohoku Univ.
  • Year and Date: 20091005-20091006
• [Presentation] Band-gap moduration in gated bilayer graphene (Invited: Keynote talk) (2009)
  • Author(s): K. Tsukagoshi, H. Miyazaki, A. Kanda
  • Organizer: rends In Nanotechnology 2009 (TNT2009)
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 20090907-20090911
• [Presentation] Spin and charge transport in multilayer graphene (invited) (2008)
  • Author(s): A. Kanda
  • Organizer: 13th Advanced Heterostructures and Nanostructures Workshop (AHNW)
  • Place of Presentation: Hawaii, USA
  • Year and Date: 20081207-20081212
• [Presentation] Electron transport in single and multilayer graphene (invited) (2008)
  • Author(s): A. Kanda
  • Organizer: 2008 International Microprocesses and Nanotechnology Conference (MNC2008)
  • Place of Presentation: Fukuoka
  • Year and Date: 20081027-20081030
• [Presentation] Gate control of conduction of thin graphite film (Invited) (2007)
  • Author(s): K. Tsukagoshi
  • Organizer: 2008 the International Winterschool on Electronic Properties of Novel Materials (IWEPNM)
  • Place of Presentation: Kirchberg, Tirol, Austria
  • Year and Date: 20070310-20070317
• [Presentation] Electrical transport through a superconducting atomic point contact (2007)
  • Author(s): Y. Ootuka
  • Organizer: the First International Symposium on Atomic Technology (ISAT-2007)
  • Place of Presentation: Tsukuba
  • Year and Date: 2007-03-17
• [Presentation] Nano-scale fabrications and contact interface modifications for nano-material transports (Invited) (2006)
  • Author(s): K. Tsukagoshi
  • Organizer: Japan-Germany Joint Workshop 2006, Nano-Electronics
  • Place of Presentation: Hotel Villa Fontaine Conference Center, Shiodome Tokyo
  • Year and Date: 20061030-20061101
• [Presentation] Current-phase relation of a superconducting atomic point contact (invited), Workshop on Non-equilibrium Phenomena in Strongly Correlated Quantum Systems (2006)
  • Author(s): Y. Ootuka
  • Organizer: the Institute for Theoretical Atomic, Molecular, and Optical Physics, the Harvard-Smithsonian Center for Astrophysics
  • Place of Presentation: USA
  • Year and Date: 20060210-20060212
• [Presentation] Current-phase relation of a superconducting atomic point contact (2005)
  • Author(s): Y. Ootuka, H. Miyazaki, A. Kanda
  • Organizer: IV International Conference on VORTEX MATTER IN NANOSTRUCTURED SUPERCONDUCTORS
  • Place of Presentation: Crete
  • Year and Date: 20050903-20050909
• [Book] グラフェンの機能と応用展望(第6章グラフェンの超伝導近接効果) (2009)
  • Author(s): 神田晶申
  • Total Pages: 90-101
  • Publisher: シーエムシー出版
• [Book] グラフェンの機能と応用展望(第5章「グラフェンの作製、膜厚の評価、観察」) (2009)
  • Author(s): 宮崎久生, 日浦英文, 塚越一仁
  • Total Pages: 79-89
  • Publisher: シーエムシー出版
• [Book] 「ナノチューブハンドブック」3. 3. 2. 14「機能と応用:ナノチューブ電極と応用」 (2007)
  • Author(s): 塚越一仁
  • Total Pages: 398-402
  • Publisher: エヌ・ティー・エス
• [Remarks]
  • URL: http://lt.tsukuba.ac.jp
• [Patent(Industrial Property Rights)] グラフェン又は超薄膜グラファイトの厚さ検出方法および厚さ検出システム (2008)
  • Inventor(s): 宮崎久生、塚越一仁
  • Industrial Property Rights Holder: 独立行政法人産業技術総合研究所
  • Industrial Property Number: 特願・2008-208965
  • Filing Date: 2008-08-14
  • Acquisition Date: 2008-08-14
• [Patent(Industrial Property Rights)] 電子素子および電子素子の製造方法 (2007)
  • Inventor(s): 宮崎久生, 塚越一仁, 小高隼介, 青柳克信
  • Industrial Property Rights Holder: 独立行政法人理化学研究所
  • Industrial Property Number: 特開・2009-11137
  • Filing Date: 2007-10-11
  • Acquisition Date: 2007-10-11