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量子干渉効果ディバイスの基礎

Research Project

Project/Area Number 04221103
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionOsaka University

Principal Investigator

邑瀬 和生  大阪大学, 理学部, 教授 (50028164)

Co-Investigator(Kenkyū-buntansha) 井上 正崇  大阪工業大学, 工学部, 教授 (20029325)
荒川 泰彦  東京大学, 先端科学技術センター, 助教授 (30134638)
小林 俊一  東京大学, 理学部, 教授 (90029471)
川路 紳治  学習院大学, 理学部, 教授 (00080440)
浜口 智尋  大阪大学, 工学部, 教授 (40029004)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥39,000,000 (Direct Cost: ¥39,000,000)
Fiscal Year 1992: ¥39,000,000 (Direct Cost: ¥39,000,000)
Keywordsエッジ電流 / 電荷KTB転移 / 量子細線 / 有機伝導体 / 量子ホール効果 / アンダーソン局在 / 微粒子 / 量子化コンダクタンス
Research Abstract

(1)低温、強磁場下の2次元電子系のさまざまな量子伝導現象を測定し、それらの現象における、エッジ電流、測定端子、閉じこめポテンシャル、バリステック電子、アンダーソン局在のはたす役割について探究した。(邑瀬)(2)ヘテロ接合2次元電子系にフィボナッチ格子ポテンシャル変調を形成し、電気伝導度に準周期系特有の性質が現れることを確認した。また、銅の微粉子を並べた2次元的な膜の電荷KTB転移に起因することを明らかにした。(小林)(3)MOCVD選択成長によりGaAs量子細線およびGaAs量子ドットをそれぞれ形成することに成功した。(荒川)(4)有機伝導体α-(BEDT-TTF)_2I_3の金属ー絶縁体転移近傍では電気伝導度の異方性が不思議な振る舞いをする事を発見した。(梶田)(5)GaAs/AlGaAsヘテロ接合界面2次元電子系で、量子ホール効果のブレークダウン臨界電流が試料幅に比例することを観測した。(川路)(6)量子細線における磁気フォノン共鳴の理論とホットエレクトロン現象の解析を発表し、実験で磁気抵抗に極大を観測し、電子閉じ込めエネルギーを求めた。(浜口)(7)InAsヘテロ構造をMBE成長し、その物性を光学的および電気的測定により評価した。(井上)(8)PtSi薄膜および細線の超伝導とアンダーソン局在との競合を磁気抵抗の弱局在理論による解析を行って調べた。(石田)(9)ガス中蒸発法でGeおよびInSb微粒子を作製し、フォノンの非調和性が微粒子では増加すること、および電子・格子系の波数ベクトルの離散化に伴って電子格子相互作用が変化することを示した。(佐々木)(10)強磁場下の二次元電子系について、エッジ状態間、およびエッジ状態とバルク状態間の電子の非平衡分布に基因する非局所的伝導を観測した。(小宮山)

Report

(1 results)
  • 1992 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] K.Oto: "Nonlocal Shubnikov-de Haad Effect in Si-MOS FETs" Surface Science. 263. 303-306 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Takaoka: "Nonlocal Quantum Conduction and the Influence of Contact Resistance in GaAs/AlGaAs Wires" Surface Science. 267. 282-285 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Tsukagoshi: "Spin Dependent Nonlocal Quantum Transport Influenced by Gate Voltages in GaAs/AlGaAs Wires" Proc.Int.Sympo.on Science and Technolog of Mesoscopic Structures. 199-204 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Tsukagoshi: "Role of Edge and Bulk Currents through a Gate Barrier in Nonlocal Resistance of GaAs/AlGaAs" Phys.Rev.B. 46. 5016-5019 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Takaoka: "Ballistic and Elastic Mean-Free Path in GaAs/AlGaAs by Magnetic Electron Focusing Effect" Solid State Commun.83. 775-777 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Katsumoto: "Electron Propagation through a Fibonacci Lattice" Solid State Commun.85. 223-226 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] A.Kanda: "Single-Electron Tunneling in One-Dimensional Arrays of Small Tunnel Junctions" J.Phys.Soc.Jpn.61. 1871-1873 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] R.Yamada: "Global Coherence and Grain Size in Superconducting Granular Films" J.Phys.Soc.Jpn.61. 2656-2659 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Kobayashi: "Spin-Orbit Interaction in Small Metallic Particles" J.Phys.Soc.Jpn.61. 1856-1857 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Kobayashi: "Film of Oxidized Metal Particles-A New Solid with Characteristics Ranging from Disordered Metal to Tunneling Junction Network" Surface Science Report. 16. 1-47 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Nishio: "Thermal and Magnetic Properties in Organic Metals (DMe-DCNQI)_2Cu and (DMe_<1-x>MeBrx-DCNQI)_2Cu" Solid State Commun.31. 472 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] J.Wakabayashi: "Localization in Landau subbands with the Landau quantum number 0 and 1 of Si-MOS inversion layers" J.Phys.Soc.Jpn.61. 1691-1700 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] N.Mori: "Magnetophonon resonance in quantum wires" Phys.Rev.B. 45. 4536-4539 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Asahi: "InGaAsP/InP quantum wires fabricated by focused Ga ion beam implantation" Surface Science. 267. 232-235 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Morifuji: "Electronic band structure of superlattices under a uniform electric field and Wannier-Stark effect" Semiconductor Science and Technology. 7. 1047-1051 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] C.Hamaguchi: "Magnetotransport in quantum wires" Proc.International Workshop on Computational Electronics. 49-54 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] N.Mori: "Electron mobility in quantum wires at high temperatures" Proc.International Workshop on Computational Electronics. 261-264 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] J.Smoliner: "Electron Transport in Low Dimensional Systems at High Temperatures" Second International Symposium on New Phenomena in Mesoscopic Structures. 284-287 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yoh: "One Dimensional Electron Transport in InAs/(AlGa)Sb SQWs" Semicond.Sci.Technol.B295-B298 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yoh: "Drain Current Quantization at 77K in InAs Heterojunction Quantum Wires" Extended Abstracts of 10th International Workshop on Future Electron Devices. 50-51 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Iwai: "Raman scattering from InAs/AlSb ultrathin-layer superlattices grown by molecular beam epitaxy" Surface Science. 267. 434-437 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yoh: "Indium Arsenide Quantum Wires Fabricated by Electron Beam Lithography and Wet-Chemical Etching" Digest of Papers 5th International Microprocess Conference. 112-113 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Iwai: "Control of Heterointerface in InAs/GaSb Ultrathin-Layer Superlattices" Eleventh Record of ASPES. 457-462 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Inoue: "Low Dimensional Properties of InAs Heterostructures:Quantum Transport in Mesoscopic Devices" Extended Abstract of the Second International Symposium on New Phenomena in Mesoscopic Structures. 64-67 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yoh: "Indium Arsenide Quantum Wires Fabricated by Electron Beam Lithography and Wet-Chemical Etching" Jpn.J.Appl.Phys. 31. 4515-4519 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Yano: "Pb-dopes BiSrCaCuo superconducting thin films grown by halide-CVD" Phase Transitions. 42. 73-78 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Sasaki: "Raman scattering of gas-evaporated Ge with a structure other than the diamond lattice" Jpn.J.Appl.Phys.32. L79-L81 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Hirai: "Proposed Measurements of the Phase-Coherence Length in Two-Dimensional Electron Gas at High Magnetic Fields" J.Appl.Phys.71. 4390-4398 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Komiyama: "Inter-Edge-State Scattering and Nonlinear Effects in a Two Dimensional Electron Gas at High Magnetic Fields" Phys.Rev.B. 45. 11085-11107 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Nii: "Geometry-Dependent Resistances of Two Dimensional Electron Gas at High Magnetic Fields" Surface Science. 263. 275-279 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Namba: "Science and Technology of Mesoscopic Structures" Springer-Verlag, 469 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Ismail: "Quantum Effect Physics,Electronics and Applications" Institute of Physics Publishing, 264 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Kawaji: "High Magnetic Fields in Semiconductor Physics III" Springer, (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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