Study of high-frequency conduction through single-atom contacts and single-molecule junctions

• Project/Area Number: 23310067
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanostructural science
• Research Institution: Kyoto University
• Principal Investigator: SAKAI Akira 京都大学, 工学(系)研究科(研究院), 教授 (80143543)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2011: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
• Keywords: 単原子接点・単分子架橋 / 交流伝導 / ナノコンタクト / ナノ材料 / 原子サイズ接点 / 高周波伝導 / 金属単原子接点 / コンダクタンス

Research Abstract

Measurements have been made on the high-frequency electric conduction through Au single-atom contacts and Au/BDT/Au single-molecule junctions. Junctions are prepared using the break-junction method and their signal transmission characteristics up to 1GHz have been measured with a network analyzer. It is found that both the imaginary part of the admittance of Au/BDT/Au single-molecule junctions and the phase of the S21 parameter of Au single-atom contacts exhibit a flat spectrum and remain zero up to 1GHz. The results indicate that these atom- and molecule-sized junctions behave as pure resistance in the RF regime.

Research Products

• [Journal Article] Molecular dynamics simulation of the break of magnesium nanowires (2014)
  • Author(s): A. Takahashi, S. Kurokawa, and A. Sakai
  • Journal Title: Phys. Status Solidi B Volume: (to be published) Issue: 7 Pages: 1363-1371
  • DOI: 10.1002/pssb.201350245
  • NAID: 120005666190
  • Year and Date: 2014-05-13
  • Peer Reviewed
• [Journal Article] Conductance of Au/1,4-benzenedicarbothioamide/Au molecular junctions : a proposal for a potential linker (2014)
  • Author(s): T. Sagisaka, S. Kurokawa, A. Sakai, K. -i. Yamashita, M. Taguchi, M. S. Asano, and K. -i. Sugiura
  • Journal Title: Chem. Phys. Lett. Volume: 113,595-596C Pages: 167-170
  • DOI: 10.1016/j.cplett.2014.01.054
  • NAID: 120005411440
  • Peer Reviewed
• [Journal Article] Molecular dynamics simulation of the break of magnesium nanowires (2014)
  • Author(s): A. Takahashi, S. Kurokawa, and A. Sakai
  • Journal Title: Physica Status Solidi B Volume: 印刷中
  • NAID: 120005666190
  • Peer Reviewed
• [Journal Article] Formation and Conductance of Cd and Ti Single-Atom Contacts at Room Temperature (2014)
  • Author(s): T. Horiuchi, A. Takahashi, S. Kurokawa, and A. Sakai
  • Journal Title: e-Journal of Surface Science and Nanotechnology Volume: 印刷中
  • NAID: 130004438862
  • Peer Reviewed
• [Journal Article] Electron transport through Ni/1,4-benzenedithiol/Ni single-molecule junctions under magnetic field (2013)
  • Author(s): K. Horiguchi, T. Sagisaka, S. Kurokawa, and A. Sakai
  • Journal Title: J. Appl. Phys. Volume: 113,144313 Issue: 14 Pages: 1-7
  • DOI: 10.1063/1.4800530
  • NAID: 120005244664
  • Peer Reviewed
• [Journal Article] Admittance of Au/1,4-benzenedithiol/Au single-molecule junctions (2012)
  • Author(s): K. Yamauchi, S. Kurokawa, and A. Sakai
  • Journal Title: Appl. Phys. Lett. Volume: 101(25), 253510 Issue: 25 Pages: 1-3
  • DOI: 10.1063/1.4772642
  • NAID: 120005173477
  • Peer Reviewed
• [Journal Article] Formation of atom-sized contacts of Mg and Mg alloys at room temperature (2012)
  • Author(s): A. Takahashi, S. Kurokawa and A. Sakai
  • Journal Title: Phys. Status Solidi A Volume: 209 Issue: 11 Pages: 2151-2156
  • DOI: 10.1002/pssa.201228190
  • Peer Reviewed
• [Journal Article] Conductance of atom-sized contacts of transition metals at room temperature (2012)
  • Author(s): Y Moriguchi, K. Yamauchi, S. Kurokawa, and A. Sakai
  • Journal Title: Surf. Sci. Volume: 606 Issue: 11-12 Pages: 928-932
  • DOI: 10.1016/j.susc.2012.02.009
  • NAID: 120004025605
  • Peer Reviewed
• [Journal Article] Conductance of Atom-Sized Contacts of Indium (2011)
  • Author(s): M. Kuwata, S. Kurokawa, and A. Sakai
  • Journal Title: e-Journal of Surface Science and Nanotechnology Volume: 9 Pages: 85-89
  • DOI: 10.1380/ejssnt.2011.85
  • NAID: 130004439264
  • ISSN: 1348-0391
  • Peer Reviewed
• [Journal Article] Formation and Conductance of Cd and Ti Single-Atom Contacts at Room Temperature
  • Author(s): T. Horiuchi, A. Takahashi, S. Kurokawa, and A. Sakai
  • Journal Title: e-J. Surf. Sci. Nanotech. Volume: (to be published)
  • NAID: 130004438862
  • URL: http://www.sssj.org/ejssnt/
  • Peer Reviewed
• [Presentation] Au原子サイズ接点の高周波特性 (2014)
  • Author(s): 酒井明
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 平塚市
  • Year and Date: 2014-03-28
• [Presentation] Au単原子接点の高周波伝導特性 (2013)
  • Author(s): 青山将大
  • Organizer: 第33回日本表面科学会学術講演
  • Place of Presentation: つくば市
  • Year and Date: 2013-11-27
• [Presentation] Single-atom conductance of some HCP metals (2013)
  • Author(s): A. Sakai
  • Organizer: 12th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures and 21st International Colloquium on Scanning Probe Microscopy, ACSIN-12 & ICSPM21
  • Place of Presentation: つくば市
  • Year and Date: 2013-11-08
• [Presentation] Yの単原子コンダクタンス (2013)
  • Author(s): 酒井明
  • Organizer: 日本物理学会 2013年秋季大会
  • Place of Presentation: 徳島市
  • Year and Date: 2013-09-27
• [Presentation] Ni原子サイズ接点のコンダクタンス分布の温度依存性 (2013)
  • Author(s): 酒井明
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 東広島市
  • Year and Date: 2013-03-26
• [Presentation] Ni原子サイズ接点のコンダクタンス分布の温度依存性 (2013)
  • Author(s): 森口裕磨
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 東広島
• [Presentation] HCPナノワイヤの引張変形挙動と単原子接点形成 (2012)
  • Author(s): 高橋篤史
  • Organizer: 第32回日本表面科学会学術講演会
  • Place of Presentation: 仙台市
  • Year and Date: 2012-11-22
• [Presentation] Ni単原子接点コンダクタンスの温度依存性 (2012)
  • Author(s): 森口裕磨
  • Organizer: 第32回日本表面科学会学術講演会
  • Place of Presentation: 仙台市
  • Year and Date: 2012-11-21
• [Presentation] Mgナノワイヤーの破断過程 (2012)
  • Author(s): 酒井明
  • Organizer: 日本物理学会 2012年秋季大会
  • Place of Presentation: 横浜市
  • Year and Date: 2012-09-20
• [Presentation] Atom-sized contacts of HCP metals and their conductance at room temperature (2012)
  • Author(s): A. Sakai
  • Organizer: 24th General Conference of the Condensed Matter Division of the European Physical Society, CMD-24
  • Place of Presentation: エディンバラ市
  • Year and Date: 2012-09-03
• [Presentation] HCP金属の原子サイズ接点の室温コンダクタンス (2012)
  • Author(s): 高橋篤史
  • Organizer: 日本物理学会第67回年次大会
  • Year and Date: 2012-03-26
• [Presentation] MCBJ法を用いたAu/BDT/Au単分子接合のインピーダンス測定 (2012)
  • Author(s): 山内一正
  • Organizer: 日本表面科学会関西支部20周年若手ポスター発表会
  • Place of Presentation: 宇治市
  • Year and Date: 2012-03-07
• [Presentation] 金属単原子接点の高周波透過特性 (2012)
  • Author(s): 歳森悠人
  • Organizer: 日本表面科学会関西支部20周年若手ポスター発表会
  • Place of Presentation: 宇治市
  • Year and Date: 2012-03-07
• [Presentation] Mgナノワイヤーの破断過程 (2012)
  • Author(s): 高橋篤史
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜市
• [Presentation] Atom-sized contacts of HCP metals and their conductance at room temperature (2012)
  • Author(s): Akira Sakai
  • Organizer: 24th General Conference of the Condensed Matter Division of the European Physical Society, CMD-24
  • Place of Presentation: Edinburgh
• [Presentation] Formation of the atom-sized contacts of Mg alloys at room temperature (2011)
  • Author(s): A. Takahashi
  • Organizer: International Symposium on Surface Science and Nanotechnology, ISSS-6
  • Place of Presentation: 東京都
  • Year and Date: 2011-12-14
• [Presentation] AC response of Au/BDT/Au molecular junctions (2011)
  • Author(s): K. Yamauchi
  • Organizer: International Symposium on Surface Science and Nanotechnology, ISSS-6
  • Place of Presentation: 東京都
  • Year and Date: 2011-12-13
• [Presentation] RF Signal Transmission through Single-Atom Contacts of Metals (2011)
  • Author(s): Y. Toshimori
  • Organizer: International Symposium on Surface Science and Nanotechnology, ISSS-6
  • Place of Presentation: 東京都
  • Year and Date: 2011-12-13
• [Presentation] Yの単原子コンダクタンス
  • Author(s): 石野裕士，石田裕基，黒川 修，酒井 明
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島市
• [Presentation] Au単原子接点の高周波伝導特性
  • Author(s): 青山将大，黒川 修，酒井 明
  • Organizer: 第33回日本表面科学会学術講演会
  • Place of Presentation: つくば市
• [Presentation] 破断接合における金属単原子接点の形成
  • Author(s): 酒井 明
  • Organizer: 特別推進研究終了報告シンポジウム「MEMSと実時間TEM観察によるナノメカニカル特性評価と応用展開」
  • Place of Presentation: 東京都
• [Presentation] Au原子サイズ接点の高周波特性
  • Author(s): 青山将大，黒川 修，酒井 明
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 平塚市