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2013 Fiscal Year Final Research Report

Development and application of a time-dependent electron-transport simulator

Research Project

  • PDF
Project/Area Number 24710152
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Microdevices/Nanodevices
Research InstitutionHokkaido University

Principal Investigator

EGAMI Yoshiyuki  北海道大学, 工学(系)研究科(研究院), 助教 (20397631)

Project Period (FY) 2012-04-01 – 2014-03-31
Keywords第一原理計算 / 電子輸送特性 / 時間依存密度汎関数法 / Impulse Response法 / 理論物性物理
Research Abstract

First-principles electron-transport property simulator based on the time-dependent density functional theory has been developed to demonstrate the dynamic behavior of flowing electrons through nanostructures and explore the suitable materials for novel electronic devices. In this study, the response times of transmission peaks in the conduction channels were compared. It has been found that the contribution to electron transporting can be ignore since the response time of the channel is enough long in the organic molecular chain systems. Moreover, the response time can be affected by change in the conformation of molecule or the condition of interface between the molecule and electrodes.

  • Research Products

    (17 results)

All 2014 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (12 results) Remarks (1 results)

  • [Journal Article] First-Principles Study on Dynamic Electron-Transport Property through Low Dimensional System2014

    • Author(s)
      Y. Egami, K. Hirose
    • Journal Title

      JPS Conf. Proc

      Volume: 1 Pages: 016012

    • DOI

      10.7566/JPSCP.1.016011

    • Peer Reviewed
  • [Journal Article] Spin relaxation in a zinc-blende (110) symmetric quantum well withδdoping2014

    • Author(s)
      H. Akera, H. Suzuura, Y. Egami
    • Journal Title

      Phys. Rev. B

      Volume: 89 Pages: 075314

    • DOI

      10.1103/PhysRevB.89.075314

    • Peer Reviewed
  • [Journal Article] First-principles transport calculation method based on real-space finite-difference nonequilibrium Green's function scheme2012

    • Author(s)
      T. Ono, Y. Egami, K. Hirose
    • Journal Title

      Phys. Rev.B

      Volume: 86 Pages: 195406/1-13

    • DOI

      10.1103/PhysRevB.86.195406

    • Peer Reviewed
  • [Journal Article] Ballistic electron transport through nanostructure junctions from a real-space finite-difference approach

    • Author(s)
      S. Tsukamoto, T. Ono, Y. Egami
    • Journal Title

      Quant. Matt.

      Volume: (in press)

    • Peer Reviewed
  • [Presentation] カーボンナノチューブを用いたナノ接合における電子輸送特性の第一原理研究2014

    • Author(s)
      江上喜幸, 明楽浩史
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(27aAP-7)
    • Year and Date
      2014-03-27
  • [Presentation] zinc-blende(110)対称量子井戸におけるスピン緩和とLOフォノン散乱2014

    • Author(s)
      明楽浩史, 鈴浦秀勝
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学(27aAW-5)
    • Year and Date
      2014-03-27
  • [Presentation] Ab-initio study on time-dependent electron-transport properties of nanostructures2013

    • Author(s)
      Y. Egami, K. Hirose
    • Organizer
      16th Asian Workshop on First-Principles Electronic Structure Calculations
    • Place of Presentation
      Jiuhaua Resort & Convention Center, Beijing, China
    • Year and Date
      20131028-30
  • [Presentation] First-principles study on dynamic electron-transport property through low dimensional system2013

    • Author(s)
      Y. Egami, K. Hirose
    • Organizer
      12th Asia Pacific Physics Conference
    • Place of Presentation
      Makuhari Messe, Chiba, Japan
    • Year and Date
      20130714-19
  • [Presentation] zinc-blende(110)対称量子井戸におけるスピン緩和2013

    • Author(s)
      明楽浩史, 鈴浦秀勝
    • Organizer
      第18回半導体スピン工学の基礎と応用PASPS-18
    • Place of Presentation
      大阪大学(A-2)
    • Year and Date
      2013-12-09
  • [Presentation] Impulse Response法による単分子接合における動的電子輸送特性の吸着構造依存性に関する研究2013

    • Author(s)
      江上喜幸, 広瀬喜久治
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学(28aJA-12)
    • Year and Date
      2013-09-28
  • [Presentation] 炭素系ナノ構造における第一原理電子輸送特性シミュレーション2013

    • Author(s)
      江上喜幸, 明楽浩史
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学(28aJA-11)
    • Year and Date
      2013-09-28
  • [Presentation] デルタドープGaAs(110)対称量子井戸におけるスピン緩和時間の電子密度依存性2013

    • Author(s)
      明楽浩史, 鈴浦秀勝, 江上喜幸
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学(26aDD-9)
    • Year and Date
      2013-09-26
  • [Presentation] GaAs(110)対称量子井戸におけるスピン緩和時間の不純物分布依存性2013

    • Author(s)
      明楽浩史, 鈴浦秀勝, 江上喜幸
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(29aXL-8)
    • Year and Date
      2013-03-29
  • [Presentation] グラフェンナノブリッジにおける電子輸送特性の第一原理研究2013

    • Author(s)
      江上喜幸, 明楽浩史
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学(29aXK-5)
    • Year and Date
      2013-03-29
  • [Presentation] First-principles study on dynamic transport properties of electrons through molecular chain2012

    • Author(s)
      Y. Egami, K. Hirose
    • Organizer
      15th Asian Workshop on First-Principles Electronic Structure Calculations
    • Place of Presentation
      Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei
    • Year and Date
      20121105-07
  • [Presentation] Impulse Response法による分子ワイヤーにおける動的電子輸送特性予測2012

    • Author(s)
      江上喜幸, 広瀬喜久治
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学(21aFF-4)
    • Year and Date
      2012-09-21
  • [Remarks]

    • URL

      http://zimg-ap.eng.hokudai.ac.jp/

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Published: 2015-06-25  

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