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2007 Fiscal Year Annual Research Report

ナノリンク分子の理論

Research Project

Project/Area Number 17069013
Research InstitutionWaseda University

Principal Investigator

塚田 捷  Waseda University, 理工学術院, 教授 (90011650)

Co-Investigator(Kenkyū-buntansha) 小林 伸彦  筑波大学, 大学院・数理物質科学研究科, 助教授 (10311341)
森川 良忠  大阪大学, 産業科学研究所, 助教授 (80358184)
常行 真司  東京大学, 大学院・理学系研究科, 助教授 (90197749)
馬越 健次  兵庫県立大学, 大学院・物質理学研究科, 教授 (10116098)
上羽 弘  富山大学, 工学部, 教授 (70019214)
Keywords分子架橋 / 第一原理計算 / 量子輸送 / 分子吸着系
Research Abstract

塚田は、ポリアセン架橋系などの電子と分子振動の相互作用を解析し、擬ポーラロン状態による電流電圧曲線を理論的に導いた。また、非弾性損失スペクトル関数により弾性トンネル過程と非弾性トンネル過程の移り変わりを考察し、ポーラロン障壁効果を検討した。小林は局在基底グリーン関数法を用い、分子架橋系の電流電圧特性の非線形性や負性微分抵抗を解析し、金属電極に接合した半導体ナノチューブの伝導度を評価した。赤木は、密度汎関数法により不飽和炭化水素類のSi(001)表面での吸着プロセスを調べ、異なる吸着構造が現れる機構を明らかにした。また、アルキル基吸着系における電場効果を調べ、I/V特性の非対称性を説明した。上羽は、単一分子非弾性トンネル分光における電流電圧特性2次微分のピークまたはデイップは、弾性および非弾性成分の競合により決まることを明らかにした。さらにトンネル電子に誘起される吸着分子の反応において、振動モード間結合の果たす役割を議論した。馬越は、位相のずれを用いた弾性電流の表式から、電気伝導度の最大値が量子化コンダクタンスの整数倍になることをしめした。森川は、分子スイッチの機構と関連して、表面での電場が吸着有機分子の構造と電子状態に及ぼす影響を調べた。またIDISモデルの適用限界について検討し、ベンゼンチオレートのPt(111)表面上での吸着構造と電子状態について研究した。相澤は、(金属)-(無機分子)-(有機分子)接合を第一原理計算によって検討し、NO分子がPt(111)表面のfcc-ホローサイトに結合する場合が安定であることを明らかにした。常行は、トランスコリレイティッド法により、絶縁体のバンドギャップがハートリー・フォック法や密度汎関数法に比べて改善されることを示した。

  • Research Products

    (31 results)

All 2008 2007

All Journal Article (23 results) (of which Peer Reviewed: 23 results) Presentation (8 results)

  • [Journal Article] Theoretical Simulations of Non-Contact Atomic Force Microscopy of 5-(4-methvlthiophenyl)-10, 15, 20-tris (3,5-di-t-butylphenyl) porphyrin Molecule on Graphene Sheet2008

    • Author(s)
      Masanori Harada and Masaru Tsukada
    • Journal Title

      Phys. Rev. B (in press)

    • Peer Reviewed
  • [Journal Article] Role of molecular orbitals near the Fermi level in the excitation of vibrational modes of a single molecule at the STM junction2008

    • Author(s)
      M. Ohara, Y. Kim, S. Yanagisawa, Y. Morikawa, and M. Kawai
    • Journal Title

      Phys. Rev. Lett 100

      Pages: 136104

    • Peer Reviewed
  • [Journal Article] Electric field effect on the adsorption state of methylthiolate on Au (111)2008

    • Author(s)
      A. Nagoya, I. Hamada, and Y. Morikawa
    • Journal Title

      e-J. Surf. Sci. and Nanotechnology 6

      Pages: 99-102

    • Peer Reviewed
  • [Journal Article] Heating of adsorbates by vibrational mode coupling2008

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

      Physical Review B77

      Pages: 035413

    • Peer Reviewed
  • [Journal Article] Simulated non-contact AFM images of an alcohol molecule in an alkanethiol self-assmbled monolayer2007

    • Author(s)
      K. Tagami and M. Tsukada
    • Journal Title

      Nanotechnology 18

      Pages: 084005

    • Peer Reviewed
  • [Journal Article] Theoretical Simulations of Scanning Probe Microscopy for Organic and Inorganic Materials2007

    • Author(s)
      M. Tsukada, K. Tagami, Q. Gao and N. Watanabe
    • Journal Title

      Current Nanoscience 3

      Pages: 57-62

    • Peer Reviewed
  • [Journal Article] Energy Dissipation Mechanism of Non-Contact Atomic Force Microscopy for Movable Objects2007

    • Author(s)
      M. Harada, M. Tsukada and N. Sasaki
    • Journal Title

      e-J. Surf. Sci. and Nanotechnol (in press)

    • Peer Reviewed
  • [Journal Article] Simulation of the energy dissipation image in noncontact atomic force microscopy of adsorbed methyl on Si (100) surface2007

    • Author(s)
      A. Masago, S. Watanabe, K. Tagami and M. Tsukada
    • Journal Title

      J. Phys. Conf. Ser

      Pages: 785-789

    • Peer Reviewed
  • [Journal Article] 走査プローブ顕微鏡における理論シミュレーションの方法2007

    • Author(s)
      塚田捷
    • Journal Title

      固体物理特集号 42

      Pages: 835-846

    • Peer Reviewed
  • [Journal Article] Clear relation of quantized conductance and structure of gold atom wires2007

    • Author(s)
      M. Tsukada
    • Journal Title

      J. Phys. Soc. Japn 76

      Pages: 123601

    • Peer Reviewed
  • [Journal Article] Length dependence of effect of electrode contact on transport properties of semiconducting carbon nanotubes2007

    • Author(s)
      Nobuhiko Kobayashi, Taisuke Ozaki and Kenji Hirose
    • Journal Title

      Surface Science 601

      Pages: 4131-4133

    • Peer Reviewed
  • [Journal Article] Effects of atomic-scale contacts on transport properties through single molecules-ab initio study2007

    • Author(s)
      Kenji Hirose and Nobuhiko Kobayashi
    • Journal Title

      Surface Science 601

      Pages: 4113-4116

    • Peer Reviewed
  • [Journal Article] Ab initio RTM/NEGF study on electron transport through single molecules2007

    • Author(s)
      Kenji Hirose and Nobuhiko Kobayashi
    • Journal Title

      Physica E 40

      Pages: 237-240

    • Peer Reviewed
  • [Journal Article] Origon of strange vibrational spectra of NO on Pt(111) surface2007

    • Author(s)
      H. Aizawa, Y. Morikawa, S. Tsuneyuki, K. Fukutani, T. Ohno
    • Journal Title

      e-J. Surf. Sci. Nanotech. 5

      Pages: 122

    • Peer Reviewed
  • [Journal Article] First-principles molecular dynamics study of Al/Alq3 interfaces2007

    • Author(s)
      K. Takeuchi, S. Yanagisawa, and Y. Morikawa
    • Journal Title

      Sci. Tech. Adv. Mate 8

      Pages: 191-195

    • Peer Reviewed
  • [Journal Article] Local Electronic Properties Induced at the Molecule-Metal Interface2007

    • Author(s)
      S. Masuda, Y. Koide, M. Aoki, and Y. Morikawa
    • Journal Title

      J. Phys. Chem. C 111

      Pages: 11747-11750

    • Peer Reviewed
  • [Journal Article] Adsorption state of methylthiolate on the Au (111) surface2007

    • Author(s)
      A. Nagoya and Y. Norikawa
    • Journal Title

      J. Phys. Condensed Matter 19

      Pages: 365245

    • Peer Reviewed
  • [Journal Article] Phase-shift analysis of electric conductance through nanostructure bridges2007

    • Author(s)
      Y. Otsuka, N. Shima and K. Makoshi
    • Journal Title

      Surf. Sci 601

      Pages: 4063-4065

    • Peer Reviewed
  • [Journal Article] Enhancement of superconducting transition near surface of bulk system2007

    • Author(s)
      H. Kaneyasu, Y. Hasegawa, T. Nobukuni and K. Makoshi
    • Journal Title

      Physica C 460

      Pages: 1381-1383

    • Peer Reviewed
  • [Journal Article] Adsorbate motions induced by vibrational mode coupling2007

    • Author(s)
      H. Ueba
    • Journal Title

      Surface Science 601

      Pages: 5212-5219

    • Peer Reviewed
  • [Journal Article] Theory of inelastic tunneling spectroscopy of a single molecule-Competition between elastic and inelastic current2007

    • Author(s)
      H. Ueba, T. Mii, S.G. Tikhodeev
    • Journal Title

      Surface Science 601

      Pages: 5220-5225

    • Peer Reviewed
  • [Journal Article] Heat transfer at surfaces exposed to short-pulsed laser2007

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

      Physical Review B76

      Pages: 125401

    • Peer Reviewed
  • [Journal Article] Vibrational heating of moecules adsorbed on insulating surfaces using localized photon tunneling2007

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

      Physical Review B75

      Pages: 193404

    • Peer Reviewed
  • [Presentation] Theoretical Simulation of Scanning Probe Microscopy and Molecular Bridges2007

    • Author(s)
      M. Tsukada
    • Organizer
      ACSIN-9
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2007-11-13
  • [Presentation] AFM探針によるアポフェリチンの圧縮過程の分子動力学研究2007

    • Author(s)
      Katsunori Tagami, Masaru Tsukada
    • Organizer
      第27回表面科学講演大会
    • Place of Presentation
      Tokyo,Japan
    • Year and Date
      2007-11-01
  • [Presentation] Action spectroscopy of single molecule motions2007

    • Author(s)
      H. Ueba
    • Organizer
      AVS (American Vacuum Society) 54th International Symposium
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2007-10-15
  • [Presentation] 探針試料間の相互作用理論:総括2007

    • Author(s)
      塚田捷
    • Organizer
      日本物理学会シンポジューム 探針型プローブ-表面間相互作用の薪展開
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2007-09-21
  • [Presentation] Theoretical Simulation of AFM images and nano-mechanical properties of protein molecules2007

    • Author(s)
      M. Tsukada
    • Organizer
      10th International Conference on Non-Contact Atomic Force Microscopy
    • Place of Presentation
      Antalya, Turkey
    • Year and Date
      2007-09-16
  • [Presentation] Theoretical Approaches for Nano-Science-from Scanning Probe Microscopy Molecular Electronics2007

    • Author(s)
      M. Tsukada
    • Organizer
      IFCAM
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2007-09-10
  • [Presentation] Polaron vs Coherent Mechanism of the Carrier Transport through Molecular Layers Sandwiched by Electrodes2007

    • Author(s)
      M. Tsukada, K. Mitsutake, K. Tagami, N. Kobayashi, K. Hirose, R. Tamura
    • Organizer
      ICN+T 2007
    • Place of Presentation
      Stockholm, Sweden
    • Year and Date
      2007-07-01
  • [Presentation] Coherent and non-Coherent Features of Electron Transport through Nano-Structures2007

    • Author(s)
      M. Tsukada, K. Mitsutake, K. Tagami, N. Kobayashi, K. Hirose, R. Tamura
    • Organizer
      FCSNT2007
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2007-06-07

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Published: 2010-02-04   Modified: 2016-04-21  

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