1990 Fiscal Year Annual Research Report

量子干渉効果ディバイスの基礎

Research Project

Project/Area Number	02251104
Research Institution	Osaka 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, 教授 (20029325) 川路紳治学習院大学, 理学部, 教授 (00080440) 佐々木亘東邦大学, 理学部, 教授 (90011436) 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)
Keywords	非局所的量子伝導 / 量子細線 / 超格子 / 量子化ホ-ル効果 / 有機伝導体 / エッジ状態 / AB効果 / STM
Research Abstract	(1)GaAs/AlGaAs細線の非局所的量子伝導を様々な端子配置で測定した。電流ー電圧端子分離距離の長いところでも、低温、強磁場でシブニコフ・ドハ-ス振動が観測された。この現象は測定端子抵抗に敏感であり、エッジ状態と深く関係する。ビスマスのメゾスコピック構造で、反局在、量子ゆらぎを研究した。 (邑瀬和生) (2)STMの立ち上げを終了し、ソフトウエアを開発しつつある。(小林俊一) (3)電子ビ-ム描画技術とMOCVD成長技術とを組み合わせることにより、300A^^°程度の寸法を有する埋め込み型GaAs細線構造を作製することに成功した。さらに量子細線のバンド構造の理論解析を行うとともに、マイクロ波内の光波と閉じ込め電子との相互作用を実験的に調べ、自然放出制御効果の存在を示した。 (荒川泰彦) (4)いくつかの有機伝導体(αーBEDTーTTF_2I_3,(DMeーDCNQI)_2Cuなど)の低温磁気抵抗、比熱に異常を発見し、これと格子点が大きな有機分子であることとの関連を追求した。 (佐々木亘) (5)量子化ホ-ル抵抗ならびにコンダクタンス測定用に、GaAs/AlGaAsヘテロ接合試料を作製した。15.6Tまでの磁場、0.5Kまでの低温で、0.01p.p.m以下の相対精度で量子化ホ-ル抵抗測定を可能にした。 (川路紳治) (6)(GaAs)_n/(AlGaAs)_n超格子(n=1〜15)におけるフォトリフレクタンス測定から擬直接遷移の存在を見出した。GaAs/AlAsトンネル障壁における電子ーフォノン相互作用を取入れ、実験結果の解析を行った。 (浜口智尋) (7)InAsタイプIIヘテロ構造をMBE成長により作製し、2次元電子輸送現象を調べた。電子ビ-ム露光による極微構造作製方法を研究した。 (井上正崇) (8)PtSi薄膜と細線の低温における磁気抵抗測定を行い、超伝導転移温度、磁気散乱効果を研究した。 (石田修一、邑瀬和生)

Research Products

(27 results)

All Other

All Publications (27 results)

[Publications] S.Takaoka: "Shubnikovーde Haas Effect of Multiーterminal GaAs/AlGaAs Quantum Wire in NonーLocal Geometry" Solid State Commun.75. 293-296 (1990)
[Publications] S.Takaoka: "Decay Length of NonーLocal Shubnikovーde Haas Oscillation in a MultiーTerminal GaAs/AlGaAs Quantum Wire" Proc.20th Int.Conf.Phys.Semiconductors,1990,Thessalonik,Greece(ed.by E.M.Anastassakis and J.D.Joannopoulos,World Scientific,Singapore,1990). 2391-2394 (1990)
[Publications] Y.Liu: "Voltage Fluctuation in Mesoscopic Structures of Bismuth" Solid State Commun.73. 667-670 (1990)
[Publications] T.Yamauchi: "Tightーbinding analysis of the conductionーband structure in quantum wires" Appl.Phys.Lett.57. 1224-1226 (1990)
[Publications] Y.Arakawa: "Tightーbinding analysis of energyーband structure in quantum wires" Phys.Rev.B. B43. 4732-4738 (1991)
[Publications] T.Yamauchi: "Tightーbinding analysis for Quantum Wire Lasers and Quantum Wire Infrared Detectors" IEEE Journal of Quantum Electronics.
[Publications] T.Yamauchi: "Enhanced and Inhibited Spontaneous Emission in GaAs/AlGaAs Vertical Microcavity Lasers With Two Kinds of Quantum Wells" Appl.Phys.Lett.
[Publications] T.Yamauchi: "TIGHT BINDING ANALYSIS OF GaAs/AlGaAs QUANTUM WIRE STRUCTURES" Superlattice and Microstructures.
[Publications] T.Takahashi: "Selective Growth by Electric Beam Induced MOCVD for Quantum Microstructures" 22nd Conf.on Solid State Devices and Materials 1990,Sendai,Japan. (1990)
[Publications] T.Takahashi: "A Novel Selective Growth Technology for Quantum Microstructure Fabrication: Electron Beam Induced MOCVD" 1990 Fall Meeting of the Materials Research Society,1990,Boston,USA. (1990)
[Publications] Y.Arakawa: "Energy band structures in strained quantum wires" Phys.Rev.B.
[Publications] H.Kobayashi: "ANOMALOUS TEMPERATURE DEPENDENCE OF THE RESISTIVITY OF (DMeーDCNQI)_2Cu AT HIGH PRESSURE" The Physics and Chemistry of Organic Superconductors (ed.by G.Saito and S.Kagoshima). 45-48 (1990)
[Publications] Y.Nishio: "THERMAL AND MAGNETIC PROPERTIES OF ORGANIC METAL (DMe_<1ーx>MeBr_xーDCNQI)_2Cu" Proc.Int.Conf.Low Temp.Phys.
[Publications] K.Kajita: "ANOMALOUS MAGNETOーOSCILLATION IN OーTYPE CRYSTALS OF (BEDTーTTF)_2I_3" The Physics and Chemistry of Organic Superconductors (ed.by G.Saito and S.Kagoshima).
[Publications] S.Kawaji: "Recent results of high magnetic field experiments on 2D systems: localization and quantized Hall resistance" Physica. B164. 50-58 (1990)
[Publications] J.Wakabayashi: "EXPERIMENTS ON LOCALIZATION IN LANDAU SUBBANDS WITH THE LANDAU QUANTUM NUMBER 0 AND 1 OF Si INVERSION LAYERS" Surface Science. 229. 60-62 (1990)
[Publications] T.Nakazawa: "Temperature dependence of the energy gap of (GaAs)_n/(AlAs)_n superlattices" Proc.Int.Conf.on Modulation Spectroscopy,SPIE. 1286. 244-254 (1990)
[Publications] C.Hamaguchi: "Direct and Indirect Transitions in (GaAs)_n/(AlAs)_n Superlattices with n=1ー15" Proc.Int.Conf.on Modulation Spectroscopy,SPIE. 1286. 280-290 (1990)
[Publications] H.Fujimoto: "Direct and indirect transition in (GaAs)_n/(AlAs)_n superlattices with n=1ー15" Phys.Rev.B. B41. 7593-7601 (1990)
[Publications] T.Matsuoka: "Temperature dependence of electron mobility in InGaAs/InAlAs heterostructures" Jpn.J.Appl.Phys.29. 2017-2025 (1990)
[Publications] C.Hamaguchi: "Zoneーfolding effect in short period (GaAs)_n/(AlAs)_n superlattices with n=1ー15" Proc.20th Int.Conf.Phys.Semicondctors,1990,Thessalonik,Greece (ed.by E.M.Anastassakis and J.D.Joannopoulos,World Scientific,Singapore,1990). 2. 1033-1036 (1990)
[Publications] M.Inoue: "Carrier Distribution and LowーDimensional Transport in InAs/(Al,Ga)Sb Quantum Well Structures" Proc.of 20th ICPS. 2. 1645-1648 (1990)
[Publications] K.Yoh: "Optimization and Characterization of InAs/(Al,Ga)Sb Heterojunction FieldーEffect Transistors" Jpn.J.Appl.Phys.29. 2445-2448 (1990)
[Publications] K.Yoh: "Fabrication and Characterization of InAs Channel Heterojunction FieldーEffect Transistors" Extended Abstract of the 22nd SSDM,Sendai. 67-70 (1990)
[Publications] M.Yano: "Photoluminescence Analysis of Ultrathin Quantum Wells" Proc.of SPIE. 1238. 221-228 (1990)
[Publications] K.Yoh: "An InAs Channel Heterojunction FieldーEffect Transistor with High Transconductance" IEEE Electron Device Lett.11. 526-528 (1990)
[Publications] K.Yoh: "Fabrication of QuasiーOneーDimensional Fine Lines using InAs/(AlGa)Sb Quantum Well Structure" Memoirs of the Osaka Institute of Technology. A35. 25-37 (1990)

1990 Fiscal Year Annual Research Report

量子干渉効果ディバイスの基礎

Principal Investigator

邑瀬 和生 大阪大学, 理学部, 教授 (50028164)

Research Products

[Publications] S.Takaoka: "Shubnikovーde Haas Effect of Multiーterminal GaAs/AlGaAs Quantum Wire in NonーLocal Geometry" Solid State Commun.75. 293-296 (1990)

[Publications] S.Takaoka: "Decay Length of NonーLocal Shubnikovーde Haas Oscillation in a MultiーTerminal GaAs/AlGaAs Quantum Wire" Proc.20th Int.Conf.Phys.Semiconductors,1990,Thessalonik,Greece(ed.by E.M.Anastassakis and J.D.Joannopoulos,World Scientific,Singapore,1990). 2391-2394 (1990)

[Publications] Y.Liu: "Voltage Fluctuation in Mesoscopic Structures of Bismuth" Solid State Commun.73. 667-670 (1990)

[Publications] T.Yamauchi: "Tightーbinding analysis of the conductionーband structure in quantum wires" Appl.Phys.Lett.57. 1224-1226 (1990)

[Publications] Y.Arakawa: "Tightーbinding analysis of energyーband structure in quantum wires" Phys.Rev.B. B43. 4732-4738 (1991)

[Publications] T.Yamauchi: "Tightーbinding analysis for Quantum Wire Lasers and Quantum Wire Infrared Detectors" IEEE Journal of Quantum Electronics.

[Publications] T.Yamauchi: "Enhanced and Inhibited Spontaneous Emission in GaAs/AlGaAs Vertical Microcavity Lasers With Two Kinds of Quantum Wells" Appl.Phys.Lett.

[Publications] T.Yamauchi: "TIGHT BINDING ANALYSIS OF GaAs/AlGaAs QUANTUM WIRE STRUCTURES" Superlattice and Microstructures.

[Publications] T.Takahashi: "Selective Growth by Electric Beam Induced MOCVD for Quantum Microstructures" 22nd Conf.on Solid State Devices and Materials 1990,Sendai,Japan. (1990)

[Publications] T.Takahashi: "A Novel Selective Growth Technology for Quantum Microstructure Fabrication: Electron Beam Induced MOCVD" 1990 Fall Meeting of the Materials Research Society,1990,Boston,USA. (1990)

[Publications] Y.Arakawa: "Energy band structures in strained quantum wires" Phys.Rev.B.

[Publications] H.Kobayashi: "ANOMALOUS TEMPERATURE DEPENDENCE OF THE RESISTIVITY OF (DMeーDCNQI)_2Cu AT HIGH PRESSURE" The Physics and Chemistry of Organic Superconductors (ed.by G.Saito and S.Kagoshima). 45-48 (1990)

[Publications] Y.Nishio: "THERMAL AND MAGNETIC PROPERTIES OF ORGANIC METAL (DMe_<1ーx>MeBr_xーDCNQI)_2Cu" Proc.Int.Conf.Low Temp.Phys.

[Publications] K.Kajita: "ANOMALOUS MAGNETOーOSCILLATION IN OーTYPE CRYSTALS OF (BEDTーTTF)_2I_3" The Physics and Chemistry of Organic Superconductors (ed.by G.Saito and S.Kagoshima).

[Publications] S.Kawaji: "Recent results of high magnetic field experiments on 2D systems: localization and quantized Hall resistance" Physica. B164. 50-58 (1990)

[Publications] J.Wakabayashi: "EXPERIMENTS ON LOCALIZATION IN LANDAU SUBBANDS WITH THE LANDAU QUANTUM NUMBER 0 AND 1 OF Si INVERSION LAYERS" Surface Science. 229. 60-62 (1990)

[Publications] T.Nakazawa: "Temperature dependence of the energy gap of (GaAs)_n/(AlAs)_n superlattices" Proc.Int.Conf.on Modulation Spectroscopy,SPIE. 1286. 244-254 (1990)

[Publications] C.Hamaguchi: "Direct and Indirect Transitions in (GaAs)_n/(AlAs)_n Superlattices with n=1ー15" Proc.Int.Conf.on Modulation Spectroscopy,SPIE. 1286. 280-290 (1990)

[Publications] H.Fujimoto: "Direct and indirect transition in (GaAs)_n/(AlAs)_n superlattices with n=1ー15" Phys.Rev.B. B41. 7593-7601 (1990)

[Publications] T.Matsuoka: "Temperature dependence of electron mobility in InGaAs/InAlAs heterostructures" Jpn.J.Appl.Phys.29. 2017-2025 (1990)

[Publications] C.Hamaguchi: "Zoneーfolding effect in short period (GaAs)_n/(AlAs)_n superlattices with n=1ー15" Proc.20th Int.Conf.Phys.Semicondctors,1990,Thessalonik,Greece (ed.by E.M.Anastassakis and J.D.Joannopoulos,World Scientific,Singapore,1990). 2. 1033-1036 (1990)

[Publications] M.Inoue: "Carrier Distribution and LowーDimensional Transport in InAs/(Al,Ga)Sb Quantum Well Structures" Proc.of 20th ICPS. 2. 1645-1648 (1990)

[Publications] K.Yoh: "Optimization and Characterization of InAs/(Al,Ga)Sb Heterojunction FieldーEffect Transistors" Jpn.J.Appl.Phys.29. 2445-2448 (1990)

[Publications] K.Yoh: "Fabrication and Characterization of InAs Channel Heterojunction FieldーEffect Transistors" Extended Abstract of the 22nd SSDM,Sendai. 67-70 (1990)

[Publications] M.Yano: "Photoluminescence Analysis of Ultrathin Quantum Wells" Proc.of SPIE. 1238. 221-228 (1990)

[Publications] K.Yoh: "An InAs Channel Heterojunction FieldーEffect Transistor with High Transconductance" IEEE Electron Device Lett.11. 526-528 (1990)

[Publications] K.Yoh: "Fabrication of QuasiーOneーDimensional Fine Lines using InAs/(AlGa)Sb Quantum Well Structure" Memoirs of the Osaka Institute of Technology. A35. 25-37 (1990)

邑瀬和生大阪大学, 理学部, 教授 (50028164)