1997 Fiscal Year Annual Research Report

量子位相エレクトロニクス:総括班

Research Project

Project/Area Number	06238103
Research Institution	The University of Tokyo
Principal Investigator	安藤恒也東京大学, 物性研究所, 教授 (90011725)
Co-Investigator(Kenkyū-buntansha)	中島尚男大阪大学, 産業科学研究所, 教授 (20198071) 古屋一仁東京工業大学, 工学部, 教授 (40092572) 荒川泰彦東京大学, 生産技術研究所, 教授 (30134638) 小宮山進東京大学, 総合文化研究科, 教授 (00153677)
Keywords	低次元電子ガス / 半導体量子サイズ効果 / 微細加工技術 / 半導体超微細構造 / 固体デバイス / 量子位相エレクトロニクス
Research Abstract	化合物半導体のヘテロ構造中の低次元電子ガスは,その低次元電子物性の理解が進むと共にいくつかのデバイス応用が達成された.今日半導体量子サイズ効果の研究は一段落し,今新しいフェーズに入っている.即ち結晶の完全性と純度が向上し,電子が低温においては散乱されずに伝導すること,及び微細加工技術により1nmオーダで制御された半導体超微細構造を作ることが可能となったため,デバイスの端子間に電子の波動としての性質が直接観測されるようになった.このため,従来の物性とは全く異なった新しい現象が次々と発見されている.本重点領域研究では,極微細な固体デバイス中の新しい物理現象をより深く理解し,その制御法を探索するとともに,そのような新しい物性を直接応用したデバイスを考案し,その基礎的特性を調べることによって新しいデバイスの可能性を提示し「量子位相エレクトロニクス」と呼ぶことが出来る新しい研究分野を創出することを目的として研究を行った. 本総括班は,本重点領域研究が円滑に遂行されるため,研究者間の相互交流,研究討論,情報交換を積極的に推進する役割を担うとともに,常に研究の理念を検討し,全体として正しい方向に進行しているかどうかをチェックしてきた.本年度は重点領域研究の研究成果の最終とりまとめを行った.具体的な活動は以下のとおりである. (1)各班の研究成果を公表するために国際シンポジウムNano--Physics and Electronics(NPE97)を東京大学六本木キャンパスで開催した.会議の報告集を学術雑誌Solid State Electronicsに出版した. (2)研究成果報告書のとりまとめと出版を行った. (3)研究分野の現状と将来展望,さらには新しい研究者の養成のために,英文の解説書を執筆し,Springer VerlagからMesoscopic Physics and Electronicsとして出版した.なお,このために新たに学術出版のための科学研究費補金「研究成果公開促進費」を受けた.

Research Products
(23 results)

All Other

All Publications (23 results)

[Publications] T.Ando: "Quantum Transport in Antidot Lattices" Solitons & Fractals. 8. 1057-1083 (1997)
[Publications] S.Ishizaka: "Detaild Analysis of the Commensurability Peak in Antidot Arrays with Various Periods" Phys.Rev.B. 55. 16331-16338 (1997)
[Publications] T.Ando: "Excitons in Carbon Nanotubes" J.Phys.Soc.Jpn.66. 1066-1073 (1997)
[Publications] H.Ajiki: "Carbon Nanotubes as Quatnum Wires on a Cylinder Surface" Solid State Communications. 102. 135-142 (1997)
[Publications] T.Machida: "Phase Coherence in the Quantum Hall Effect Regime" Proc.12th Int.Conf on the Application of High Magnetic Fields. 211-214 (1997)
[Publications] T.Machida: "Experimental Studies of the Phase Coherence in the Quantum Hall Effect Regime" Solid State Communications. 103. 441-445 (1997)
[Publications] T.Machida: "Phase Coherence of Edge States over Macroscopic Length Scales" Physica B. (印刷中).
[Publications] T.Machida: "Geometry-Dependent Transition between Integer Qauntum-Hall States" Solid state Electronics. (印刷中).
[Publications] Xin-Qi Li: "Ultrafast Energy Relaxation in Quantum Dots through Defect States:A Lattice-Relazation Approach" Phys.Rev.B. 56. 1-5 (1997)
[Publications] S.Ishida: "Seeded Self-Assembled GaAs Quantum Dots Grown in Two-Dimen-sional V-Grooves by Selective Metal Organic Chemical Vapor Deposition" Appl.Phys.Lett.72. 231-233 (1998)
[Publications] T.Saito: "Strain Distribution and Electronics Structure of InAs Quantum Dots on GaAs:Atomic Scale Calculations" Phys.Low-Dim.Strict.11. 19-26 (1997)
[Publications] H.Hongo: "Hot Electron Interference by 40nm-pitch Double Slit Buried in Semiconductor" Microelectronics Engineering. 135. 337-340 (1997)
[Publications] H.Hongo: "Electrical Properties of 100nm Pitch Cr/Au Fine Electrodes with 40nm Width on GaIn As" Microelectronic Engineering. 135. 241-244 (1997)
[Publications] H.Hongo: "Influence of a Finite Energy Width on the Hot Electron Double-Slit Interference Experiment:A Design of the Emitter Structure" J.Appl.Phys.82,8. 3846-3852 (1997)
[Publications] M.Takeuchi: "Uniform GaAs Quantum Wires Formation Vicinal GaAs(100)Surfaces by Two-spec MBE Growth" Superlattices and Microstructures. 22. 43-49 (1997)
[Publications] P.Fischer: "Luminescence Characterization of Selforganized GaAs Quantum Wires:Carrier Capture and Thermalization" Electro.Chem,Soc.Proc.97,11. 366-377 (1997)
[Publications] S.Torii: "Formation of InAs Wires and Dots on Vicinal GaAs(100)Surfaces with Giant Steps by Molecular Beam Epitaxy" Jpn.J.Appl.Phys.36,12B. L1645-L1647 (1997)
[Publications] T.Kato: "Stacked GaAs Multi-Quantum Wires Grown in Vicinal GaAs(110)Surfaces by Molecular Beam Epitaxy" Appl.Phys.Lett.72,4. 465-467 (1998)
[Publications] T.Ando: "Mesoscopic Physics and Electronics" Springer Verlag, 40 (1998)
[Publications] S.Komiyama: "Mesoscopic Physics and Electronics" Springer Verlag, 10 (1998)
[Publications] Y.Arakawa: "Mesoscopic Physics and Electronics" Springer Verlag, 19 (1998)
[Publications] K.Furuya: "Mesoscopic Physics and Electronics" Springer Verlag, 11 (1998)
[Publications] H.Nakashima: "Mesoscopic Physics and Electronics" Springer Verlag, 10 (1998)

1997 Fiscal Year Annual Research Report

量子位相エレクトロニクス:総括班

Principal Investigator

安藤 恒也 東京大学, 物性研究所, 教授 (90011725)

Research Products

[Publications] T.Ando: "Quantum Transport in Antidot Lattices" Solitons & Fractals. 8. 1057-1083 (1997)

[Publications] S.Ishizaka: "Detaild Analysis of the Commensurability Peak in Antidot Arrays with Various Periods" Phys.Rev.B. 55. 16331-16338 (1997)

[Publications] T.Ando: "Excitons in Carbon Nanotubes" J.Phys.Soc.Jpn.66. 1066-1073 (1997)

[Publications] H.Ajiki: "Carbon Nanotubes as Quatnum Wires on a Cylinder Surface" Solid State Communications. 102. 135-142 (1997)

[Publications] T.Machida: "Phase Coherence in the Quantum Hall Effect Regime" Proc.12th Int.Conf on the Application of High Magnetic Fields. 211-214 (1997)

[Publications] T.Machida: "Experimental Studies of the Phase Coherence in the Quantum Hall Effect Regime" Solid State Communications. 103. 441-445 (1997)

[Publications] T.Machida: "Phase Coherence of Edge States over Macroscopic Length Scales" Physica B. (印刷中).

[Publications] T.Machida: "Geometry-Dependent Transition between Integer Qauntum-Hall States" Solid state Electronics. (印刷中).

[Publications] Xin-Qi Li: "Ultrafast Energy Relaxation in Quantum Dots through Defect States:A Lattice-Relazation Approach" Phys.Rev.B. 56. 1-5 (1997)

[Publications] S.Ishida: "Seeded Self-Assembled GaAs Quantum Dots Grown in Two-Dimen-sional V-Grooves by Selective Metal Organic Chemical Vapor Deposition" Appl.Phys.Lett.72. 231-233 (1998)

[Publications] T.Saito: "Strain Distribution and Electronics Structure of InAs Quantum Dots on GaAs:Atomic Scale Calculations" Phys.Low-Dim.Strict.11. 19-26 (1997)

[Publications] H.Hongo: "Hot Electron Interference by 40nm-pitch Double Slit Buried in Semiconductor" Microelectronics Engineering. 135. 337-340 (1997)

[Publications] H.Hongo: "Electrical Properties of 100nm Pitch Cr/Au Fine Electrodes with 40nm Width on GaIn As" Microelectronic Engineering. 135. 241-244 (1997)

[Publications] H.Hongo: "Influence of a Finite Energy Width on the Hot Electron Double-Slit Interference Experiment:A Design of the Emitter Structure" J.Appl.Phys.82,8. 3846-3852 (1997)

[Publications] M.Takeuchi: "Uniform GaAs Quantum Wires Formation Vicinal GaAs(100)Surfaces by Two-spec MBE Growth" Superlattices and Microstructures. 22. 43-49 (1997)

[Publications] P.Fischer: "Luminescence Characterization of Selforganized GaAs Quantum Wires:Carrier Capture and Thermalization" Electro.Chem,Soc.Proc.97,11. 366-377 (1997)

[Publications] S.Torii: "Formation of InAs Wires and Dots on Vicinal GaAs(100)Surfaces with Giant Steps by Molecular Beam Epitaxy" Jpn.J.Appl.Phys.36,12B. L1645-L1647 (1997)

[Publications] T.Kato: "Stacked GaAs Multi-Quantum Wires Grown in Vicinal GaAs(110)Surfaces by Molecular Beam Epitaxy" Appl.Phys.Lett.72,4. 465-467 (1998)

[Publications] T.Ando: "Mesoscopic Physics and Electronics" Springer Verlag, 40 (1998)

[Publications] S.Komiyama: "Mesoscopic Physics and Electronics" Springer Verlag, 10 (1998)

[Publications] Y.Arakawa: "Mesoscopic Physics and Electronics" Springer Verlag, 19 (1998)

[Publications] K.Furuya: "Mesoscopic Physics and Electronics" Springer Verlag, 11 (1998)

[Publications] H.Nakashima: "Mesoscopic Physics and Electronics" Springer Verlag, 10 (1998)

安藤恒也東京大学, 物性研究所, 教授 (90011725)