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2012 Fiscal Year Final Research Report

Towards reakization of single molecule electroncs- Proposal from theory

Research Project

  • PDF
Project/Area Number 21310086
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Microdevices/Nanodevices
Research InstitutionUniversity of Toyama

Principal Investigator

UEBA Hiromu  富山大学, 大学院・理工学研究部(工学), 教授 (70019214)

Project Period (FY) 2009 – 2012
Keywords分子エレクトロニクス / 単一分子 / スイッチング素子 / 負性抵抗 / 走査トンネル顕微鏡 / 振動励起 / 熱伝導
Research Abstract

(1) Elementary processes of H-atom (proton) relay reaction in water-hydroxyl chain was clarified. We found that the shared O-H stretch mode excited by tunneling electrons from a tip of a scanning tunneling microscope plays an indispensable role inducing sequential H-atom relay reaction along the chain.(2) We propose a model to describe two-level fluctuations and current-voltage characteristicsof nanoscale systems that undergo vibrationally induced switching. The parameters of the model are based on comprehensive density functional calculations of the system’s vibrational properties. Thus developed theory has been successfully applied to explain the experimental results associated with a flip motion of hydroxyl dimer on Cu(110). We also explained why the isotopic exchange of H with D leads an appearance of the negative differential resistance of the current-voltage characteristics.(3) We have formulated a general and versatile formula of a vibrationally mediated reaction yield of single molecules on metal surfaces.(4) We propose a model which allows us to calculate a thermal conductivity of graphene on amorphous SiO2.

  • Research Products

    (18 results)

All 2013 2012 2011 2010 2009

All Journal Article (15 results) Presentation (1 results) Book (2 results)

  • [Journal Article] Lateral hopping and desorption of a single CO molecule on a Cu(110) surface induced by femtosecond laser pulses2013

    • Author(s)
      H. Ueba and Y. Ootsuka
    • Journal Title

      Physical Review B

      Volume: 87, 205403

  • [Journal Article] H-atom relay reactions in real space2012

    • Author(s)
      T. Kumagai, A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, I. Hamada,T. Frederiksen, H. Ueba
    • Journal Title

      Nature Materials

      Volume: 11, 167

  • [Journal Article] Modifying current-voltage characteristics of a single molecule junction by isotope substitution: OHOD dimer on Cu(110)2012

    • Author(s)
      H. Okuyama, A. Shiotari, T. Kumagai, S. Hatta, T. Aruga, Y. Ootsuka, M. Paulsson, H. Ueba
    • Journal Title

      Physical Review B

      Volume: 85, 205424

  • [Journal Article] Analysis of lateral hopping of a single CO molecule on Pd(110)2012

    • Author(s)
      H. Ueba
    • Journal Title

      Physical Review B

      Volume: 86, 035440

  • [Journal Article] Phononic heat transfer across an interface: thermal boundary resistance2011

    • Author(s)
      B.N. J. Persson, A. I. Volokitin, H. Ueba
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 23, 045009

  • [Journal Article] Vibrationally induced flip motion of a hydroxyl dimer on Cu(110)2011

    • Author(s)
      Y. Ootsuka, T. Frederiksen, H. Ueba, M.Paulsson
    • Journal Title

      Physical Review B

      Volume: 84, 193403

  • [Journal Article] Inelastic tunneling spectroscopy of alkanetiol molecules: High-resolution spectroscopy and theoretical simulations2010

    • Author(s)
      N. Okabayashi, M. Paulsson, H. Ueba, Y.Konda, T. Komeda
    • Journal Title

      Physical. Review. Letters

      Volume: 104,077801

  • [Journal Article] Comment 'Diffusion and dimer formation of CO molecules induced by femtosecond laser pulses'2010

    • Author(s)
      H. Ueba, B.N.J. Persson
    • Journal Title

      Physical. Review. Letters

      Volume: 104,239601

  • [Journal Article] Site selective inelastic electron tunneling spectroscopy probed by isotope labeling2010

    • Author(s)
      N. Okabayashi, M. Paulsson, H. Ueba, Y. Konda, and T. Komeda
    • Journal Title

      Nano Letters

      Volume: 10,2950

  • [Journal Article] Insight into action spectroscopy for single molecule motion and reactions through inelastic electron tunneling2010

    • Author(s)
      K. Motobayashi, Y. Kim, H. Ueba, and M.Kawai
    • Journal Title

      Phys. Rev .Lett.

      Volume: 105,076101

  • [Journal Article] Lateral hopping of CO on Cu(111) induced by femtosecond laser pulses2010

    • Author(s)
      H. Ueba, Y. Ootsuka, M. Paulsson, B.N.J. Persson
    • Journal Title

      Physical Review B

      Volume: 82,121411(R)

  • [Journal Article] Heat transfer between weakly coupled systems: Graphene on a-SiO22010

    • Author(s)
      B.N.J. Persson and H. Ueba
    • Journal Title

      Europhysics Letters

      Volume: 91, 56001

  • [Journal Article] Heat transfer between graphene and amorphous SiO22010

    • Author(s)
      B.N.J. Persson, H. Ueba
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 22,462201

  • [Journal Article] How Vibrationally Assisted Tunneling with STM Affects the Motions and Reactions of Single Adsorbates2009

    • Author(s)
      S. G. Tikhodeev and H. Ueba
    • Journal Title

      PhysicalReview Letters

      Volume: 102,246101

  • [Journal Article] Lateral hopping of CO molecules on Pt(111) surface by femtosecond laser pulses2009

    • Author(s)
      M. Hayashi, T. Ootsuka, M. Paulsson, B.N.J. Persson, and H. Ueba
    • Journal Title

      Physical Review B

      Volume: 80,245409

  • [Presentation] Controlled Atomic Dynamics onSolid Surfaces: Atom and Molecular Manipulation(Invited talk)2013

    • Organizer
      "Single molecule reactions in real space and in real time"in International Workshop on
    • Place of Presentation
      San Sebastian, Spain
    • Year and Date
      2013-05-16
  • [Book] Current-driven phenomena in nanoelectronics2012

    • Author(s)
      T. Seidemann
    • Publisher
      Pan Stanford Publishing Ltd
  • [Book] Dynamics at Solid State Surface and Interfaces Vol. 1: Current Developments2011

    • Author(s)
      J. Guedde, M. Bonn, H. Ueba, and U.Hoefer
    • Publisher
      WILEY-VCH Verlag Gmb H & Co. Weinheim

URL: 

Published: 2014-08-29  

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