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Experimental simulation methods using artificial two-dimensional electron systems

Research Project

Project/Area Number 15K13367
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Nantoh Masashi  国立研究開発法人理化学研究所, 石橋極微デバイス工学研究室, 専任研究員 (90300889)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords原子操作 / 表面状態 / 二次元電子系 / 周期ポテンシャル / 局所状態密度 / 走査トンネル顕微鏡
Outline of Final Research Achievements

Artificial superstructures of Fe atoms and CO molecules have been fabricated on a Cu(111) surface by atom manipulation with a low temperature scanning tunneling microscope. On the (8 × 8) structure of CO, the spectra measured at the positions corresponding to two equivalent triangular sublattices A and B of a honeycomb show different features near the Fermi level, while this sublattice site dependence is not observed on the (6 × 6) structure. First-principles calculations have reproduced the same tendency. These results can be understood if we consider that the coupling between the surface state and the bulk is strengthen through the scattering process by the adsorbates, and the periodic potential introduced by the CO lattice is perturbed by the second layer of the Cu(111) substrate.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2017 2015

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Impurity-Induced First-order Phase Transitions in Highly Crystalline V2O3 Nanocrystals2015

    • Author(s)
      Y. Ishiwata, E. Takahashi, K. Akashi, M. Imamura, J. Azuma, K. Takahashi, M. Kamada, H. Ishii, Y.-F. Liao, Y. Tezuka, Y. Inagaki, T. Kawae, D. Nishio-Hamane, M. Nantoh, K. Ishibashi , T. Kida
    • Journal Title

      Advanced Materials Interfaces

      Volume: 2 Issue: 12 Pages: 1500132-1500132

    • DOI

      10.1002/admi.201500132

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Artificial Two-dimensional Lattice Structures Assembled by Atom Manipulation Technique2017

    • Author(s)
      M. Nantoh, K. Takashima, T. Yamamoto and K. Ishibashi
    • Organizer
      Frontiers in Quantum Materials and Devices Workshop (FQMD 2016)
    • Place of Presentation
      理化学研究所(埼玉県・和光市広沢)
    • Year and Date
      2017-06-13
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Artificial Two-dimensional Lattice Structures Assembled by Atom Manipulation Technique2017

    • Author(s)
      M. Nantoh, K. Takashima, T. Yamamoto and K. Ishibashi
    • Organizer
      The 60th International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication (EIPBN 2016)
    • Place of Presentation
      Wyndham Grand Hotel, Pittsburgh, PA, U.S.A.
    • Year and Date
      2017-05-31
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation of Artificial Two-dimensional Electron Systems Using Atom Manipulation Technique2015

    • Author(s)
      M. Nantoh, and K. Ishibashi
    • Organizer
      MNC2015 (28th International Microprocesses and Nanotechnology Conference)
    • Place of Presentation
      富山国際会議場
    • Year and Date
      2015-11-10
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 原子操作により形成した仮想グラフェンの電子状態2015

    • Author(s)
      南任真史、石橋幸治
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学
    • Year and Date
      2015-09-16
    • Related Report
      2015 Research-status Report
  • [Presentation] ノンドープおよび磁性イオンドープTiO2ナノ粒子の軟X線発光分光2015

    • Author(s)
      石渡洋一、高橋栄光、赤司健太、手塚泰久、稲垣裕次、河江達也、石井啓文、Yen-Fa Liao、木田徹也、南任真史、石橋幸治
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学
    • Year and Date
      2015-09-16
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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