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量子回転子機能デバイスの提唱と創製

Research Project

Project/Area Number 16656014
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionHokkaido University

Principal Investigator

中山 恒義  北海道大学, 大学院・工学研究科, 教授 (80002236)

Co-Investigator(Kenkyū-buntansha) 矢久保 考介  北海道大学, 大学院・工学研究科, 助教授 (40200480)
島 弘幸  北海道大学, 大学院・工学研究科, 助手 (40312392)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2004: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywords量子回転子 / 量子デバイス / ナノマニピュレーション / 超知光パルス
Research Abstract

本年度の主な成果二点を以下に述べる。
(1)多体回転子系デバイスの開発研究:本研究の主な目的は、ナノスケールで回転運動する双極子分子の分子配向を利用した新規な量子回転子デバイスを、開発・デザインすることにある。最終年度は、双極子モーメントを有する表面吸着分子を取り上げ、複数の分子間に働く双極子相互作用が系のナノ力学に与える影響を定量的に調べた。その結果、回転子間の相互作用は、誘電応答関数の非線形性を生むことが明らかとなった。さらには、極性不純物を含む物質一般に拡張し、それら一連の物質の誘電異常が我々の提唱するデバイスモデルを用いて統一的に解釈できることを示した。
(2)多体回転素子の光制御:超短パルス光を用いて量子回転子の分極配向を制御する技術は、ナノマニピュレーション技術の一環として非常に価値の高い問題である。そこで最終年度では、光パルス照射下の量子回転子のダイナミクスに関する実時間・実空間シミュレーションを行い、パルス方向への回転子の誘電分極と回転子間の相互作用との関係を昨年度に続き調べた。その結果、分極モーメントの配向が、光パルスや偏極磁場により完全に制御できることを実証し、論文発表した。さらに、これと同様の現象が、分子膜中の量子回転子についても観測される可能性を別の論文として発表した。

Report

(2 results)
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (20 results)

All 2006 2005 2004 Other

All Journal Article (20 results)

  • [Journal Article] Correlation effects of quantum rotors in Ge Crystals2006

    • Author(s)
      H.Shima
    • Journal Title

      Physica B In press

    • NAID

      120000958199

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Curvature-induced shift in the dynamic exponent of the Ising model2006

    • Author(s)
      H.Shima
    • Journal Title

      Journal of Statistical Mechanics In press

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Geometric effects on critical behaviours of the Ising model2006

    • Author(s)
      H.Shima
    • Journal Title

      Journal of Physics A : Mathematical and General In press

    • NAID

      120000953260

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Interacting quantum rotors in oxygen-doped germanium2005

    • Author(s)
      H.Shima
    • Journal Title

      Physical Review B 71・15

      Pages: 155210-155210

    • NAID

      120000962804

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Enhanced orientation of interacting polar molecules2005

    • Author(s)
      H.Shima
    • Journal Title

      Microelectronics Journal 36・3-6

      Pages: 586-588

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Breakdown of Anderson localization in disordered quantum chains2005

    • Author(s)
      H.Shima
    • Journal Title

      Microelectronics Journal 36・3-6

      Pages: 422-424

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Critical level statistics and anomalously localized states at the Anderson transition2005

    • Author(s)
      H.Obuse
    • Journal Title

      Physical Review B71・3

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Dielectric anomaly in coupled rotor systems2004

    • Author(s)
      H.Shima
    • Journal Title

      Physical Review B69

    • NAID

      120000963900

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Anomalously localized states and multifractal correlations of critical wave functions in two-dimensional electron systems with spin-orbital interactions2004

    • Author(s)
      H.Obuse
    • Journal Title

      Physical Review B69・12

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Orienting coupled quantum rotors by ultrashort laser pulses2004

    • Author(s)
      H.Shima
    • Journal Title

      Physical Review A70

    • NAID

      120000957005

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Localization-delocalization transition in one-dimensional electron systems with long-range correlated disorder2004

    • Author(s)
      H.Shima
    • Journal Title

      Physical Review B70・1

    • NAID

      120000959714

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Correlation exponent and anomalously localized states at the critical point of the Anderson transition2004

    • Author(s)
      H.Obuse
    • Journal Title

      Journal of the Physical Society of Japan 73・8

      Pages: 2164-2168

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Low-temperature anomalies of crystalline Ge with 0-impurities2004

    • Author(s)
      H.Shima
    • Journal Title

      Journal of the Physical Society of Japan 73・9

      Pages: 2464-2468

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Quantized charged transport in adiabatic pumping by a driven double delta-barrier2004

    • Author(s)
      K.Yakubo
    • Journal Title

      The Proceedings of the Sixth International Conference on New Phenomena in Mesoscopic Structures (Elsevier)

      Pages: 259-262

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Critical transport and anomalously localized states at the Anderson transition2004

    • Author(s)
      H.Obuse
    • Journal Title

      The Proceedings of the Sixth International Conference on New Phenomena in Mesoscopic Structures (Elsevier)

      Pages: 557-561

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Glass-like behavior of crystalline Ge with 0-impurities at low temperatures2004

    • Author(s)
      H.Shima
    • Journal Title

      Physica status solidi C1

      Pages: 2884-2887

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Dielectric response of interacting oxygen defects in germanium2004

    • Author(s)
      H.Shima
    • Journal Title

      Physica status solidi C1

      Pages: 2933-2936

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Antiferromagnetic fractons observed by inelastic neutron scattering experiments2004

    • Author(s)
      T.Nakayama
    • Journal Title

      J.Neutron Research 12・4

      Pages: 263-266

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Spatial structures of anomalously localized states in tail regions at the Anderson transition

    • Author(s)
      H.Obuse
    • Journal Title

      Journal of the Physical Society of Japan Supplement (発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Breakdown of Anderson localization in disordered quantum chains

    • Author(s)
      H.Shima
    • Journal Title

      Microelectronics Journal (in press)

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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