量子ホール系におけるコヒーレント現象の研究

2008 年度 研究成果報告書

• 研究課題/領域番号: 18204029
• 研究種目: 基盤研究(A)
• 配分区分: 補助金
• 応募区分: 一般
• 研究分野: 物性Ⅰ
• 研究機関: 東京大学
• 研究代表者: 家 泰弘 東京大学, 物性研究所, 教授 (30125984)
• 研究分担者: 遠藤 彰 東京大学, 物性研究所, 助教 (20260515)
• 研究期間 (年度): 2006 – 2008
• キーワード: 半導体2次元電子系 / 人工周期系 / アンチドット / 整合振動 / AB振動 / メゾスコピック超伝導

研究概要

GaAs/AlGaAs 高移動度2次元電子系をベースとするメゾスコピック構造(平面超格子, アンチドット系など)におけるコヒーレント量子輸送現象の研究を行った. フィボナッチ格子における幾何学共鳴, 2次元正孔系におけるスピン軌道相互作用によるベリー位相, 2次元正孔量子ホール系におけるストライプ相, アンチドット系のAB 振動におけるスピン依存効果, などについて新しい知見を得た, また, メゾスコピック超伝導体の磁束系のふるまいを調べた.

研究成果

• [雑誌論文] Temperature-Dependent Screening of the Edge State around Antidots in the Quantum Hall Regime (2009)
  • 著者名/発表者名: Masanori Kato, Akira Endo, Shingo Katsumoto, and Yasuhiro Iye
  • 雑誌名: Phys.Rev.Lett 102 ページ: 086802-1-4
• [雑誌論文] Detection of spin polarization with a side-coupled quantum dot (2009)
  • 著者名/発表者名: T. Otsuka, E. Abe, Y. Iye and S. Katsumoto
  • 雑誌名: Phys. Rev B79 ページ: 195313
• [雑誌論文] Aharonov-Bohm-type oscillations in antidot lattices in the quantum Hall regime (2008)
  • 著者名/発表者名: Masanori Kato, Akira Endo, Shingo Katsumoto, and Yasuhiro Iye
  • 雑誌名: Phys. Rev B77 ページ: 155318-1-7
• [雑誌論文] Modulation of the Shubnikov-de Haas Oscilation in Unidirectional Lateral Superlattices (2008)
  • 著者名/発表者名: Akira Endo, and Yasuhiro Iye
  • 雑誌名: J. Phys. Soc. Jpn 77 ページ: 064713-1-7
• [雑誌論文] (2008)
  • 著者名/発表者名: Akira Endo and Yasuhiro Iye
  • 雑誌名: J. Phys. Soc. Jpn. 77 ページ: 054709-1-9
• [雑誌論文] Superconducting transition in wire network under spatially modulated magnetic field H. Sano (2008)
  • 著者名/発表者名: A. Endo, S. Katsumoto and Y. Iye
  • 雑誌名: Physica C468 ページ: 824-827
• [雑誌論文] Observation of spin-orbit Berry phase in magnetoresistance of a two-dimensional hole antidot system (2008)
  • 著者名/発表者名: Ning Kang, Kazuya Suzuki, Eisuke Abe, Yoshiaki Hashimoto, Yasuhiro Iye, Shingo Katsumoto
  • 雑誌名: Physica E40 ページ: 1051-1054
• [雑誌論文] Potential dependent intra-dot Coulomb interaction in quantum dots side-coupled to quantum wires (2008)
  • 著者名/発表者名: Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye, Shingo Katsumoto
  • 雑誌名: Physica E40 ページ: 1270-1272
• [雑誌論文] Evolution of h/2e Aharonov-Bohm oscillation with the Zeeman energy around an antidot (2008)
  • 著者名/発表者名: Masanori Kato, Akira Endo, Shingo Katsumoto, Yasuhiro Iye
  • 雑誌名: Physica E40 ページ: 1517-1519
• [雑誌論文] Resistivity enhancement in quasiperiodic unidirectional lateral superlattices (2008)
  • 著者名/発表者名: Akira Endo, Yasuhiro Iye
  • 雑誌名: Physica E40 ページ: 1145-1148
• [雑誌論文] Higher order terms in the geometric resonance of open orbits in unidirectional lateral superlattices (2008)
  • 著者名/発表者名: Akira Endo and Yasuhiro Iye
  • 雑誌名: Solid State Commun 148 ページ: 131-134
• [雑誌論文] Excited-state spectroscopy on a quantum dot side-coupled to a quantum wire (2008)
  • 著者名/発表者名: T. Otsuka, E.Abe, Y.Iye, and S.Katsumoto
  • 雑誌名: Appl. Phys. Lett 93 ページ: 112111
• [雑誌論文] Fourier analyses of the commensurability oscillations in Fibonacci lateral superlattice (2008)
  • 著者名/発表者名: Akira Endo, and Yasuhiro Iye
  • 雑誌名: Phys. Rev B78 ページ: 085311
• [雑誌論文] Resistively-Detected NMR Studies of Quantum Hall Systems (2007)
  • 著者名/発表者名: Katsuyoshi Kodera, Hisashi Takado, Akira Endo, Yoshiaki Hashimoto, Shingo Katsumoto and Yasuhiro Iye
  • 雑誌名: AIP Conf. Proc 893 ページ: 669
• [雑誌論文] Anomalous Aharonov-Bohm-Type Effects in Square Array of Antidots (2007)
  • 著者名/発表者名: Masanori Kato, Akira Endo, Shingo Katsumoto, and Yasuhiro Iye
  • 雑誌名: AIP Conf. Proc 893 ページ: 659
• [雑誌論文] Diffraction from quasiperiodic unidirectional lateral superlattice observed in the geometric resonance of magnetoresistance (2007)
  • 著者名/発表者名: Akira Endo and Yasuhiro Iye
  • 雑誌名: AIP Conf. Proc 893 ページ: 575
• [雑誌論文] Phase Information from Two-Terminal Conductance of Quantum Dot Systems (2007)
  • 著者名/発表者名: T.Otsuka, H.Aikawa, M.Eto, G. -L.Khym, K.Kang, Y.Iye, and S.Katsumoto
  • 雑誌名: AIP Conf. Proc 893 ページ: 855
• [雑誌論文] Anisotropic Transport of Two-Dimensional Hole System in Higher Landau Levels : Effect of In-Plane Magnetic Field (2007)
  • 著者名/発表者名: H. Takado, Y.Hashimoto, A. Endo, S. Katsumoto, and Y. Iye
  • 雑誌名: J. Phys. Soc. Jpn 76 ページ: 074712-1-5
• [雑誌論文] Fano Effect in a Few-Electron Quantum Dot (2007)
  • 著者名/発表者名: T. Otsuka, E. Abe, S. Katsumoto, Y.Iye, G.-L. Khym and K. Kang
  • 雑誌名: J. Phys. Soc. Jpn 76 ページ: 084706-1-5
• [雑誌論文] Phase Transitions of Superconducting Wire Network under Spatially Modulated Magnetic Field (2007)
  • 著者名/発表者名: H. Sano, A. Endo, S. Katsumoto, and Y. Iye
  • 雑誌名: J. Phys. Soc. Jpn 76 ページ: 094707-1-7
• [雑誌論文] Observation of Spin-Orbit Berry's Phase in Magnetoresistance of a Two-Dimensional Hole Anti-dot System (2007)
  • 著者名/発表者名: Ning Kang, Eisuke Abe, Yoshiaki Hashimoto, Yasuhiro Iye, and Shingo Katsumoto
  • 雑誌名: J. Phys. Soc. Jpn 76 ページ: 083704-1-4
• [雑誌論文] Temperature Scaling of Quantum Hall Plateau Transitions in Bilayer Systems (2006)
  • 著者名/発表者名: K.Kodera,A.Endo, S.Katsumoto, and Y.Iye
  • 雑誌名: Physica E34 ページ: 112-125
• [雑誌論文] Effect of localized spins in coherent transport through quantum dots (2006)
  • 著者名/発表者名: Shingo Katsumoto, Masahiro Sato, Hisashi Aikawa, Yasuhiro Iye
  • 雑誌名: Physica E34 ページ: 36-41
• [雑誌論文] Aharonov-Bohm Effects in Different Arrays of Antidots (2006)
  • 著者名/発表者名: M.Kato, H.Tanaka, A.Endo, S.Katsumoto, and Y.Iye
  • 雑誌名: Physica E34 ページ: 534-537
• [雑誌論文] Geometric Resonance of Bragg-Reflected Cyclotron Orbits in Unidirectional Lateral Superlattices : the Role of Harmonics of the Potential Modulation (2006)
  • 著者名/発表者名: A.Endo and Y.Iye
  • 雑誌名: Physica E34 ページ: 640-643
• [雑誌論文] Magnetoresistance in the Strongly Insulating Regime of GaAs Two-Dimensional Hole Systems (2006)
  • 著者名/発表者名: K.Toyama, M.Ooya, T.Okamoto, Y.Hashimoto, S.Katsumoto and Y.Iye
  • 雑誌名: Physica E34 ページ: 697-700
• [雑誌論文] Superconducting Wire Network under Spatially Modulated Magnetic Field (2006)
  • 著者名/発表者名: Hirotaka Sano, Akira Endo, Shingo Katsumoto and Yasuhiro Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 747-749
• [雑誌論文] Temperature Scaling Anomalies in Quantum Hall Plateau Transitions with Ultra-Short Period Lateral Superlattice (2006)
  • 著者名/発表者名: K.Kodera, A.Endo, S.Katsumoto and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1345-1347
• [雑誌論文] Quantum Hall Resistance Anomalies Observed at ν= 1/3 and 1 < ν < 2 in Two-Dimensional Hole System (2006)
  • 著者名/発表者名: K.Kodera, Y.Hashimoto, A.Endo, S.Katsumoto and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1343-1346
• [雑誌論文] Aharonov-Bohm-type Oscillations of Small Array of Antidots in Quantum Hall Regime (2006)
  • 著者名/発表者名: M.Kato, H.Tanaka, A.Endo, S.Katsumoto and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1349-1351
• [雑誌論文] Novel Low-Field Magnetoresistance Oscillation in Unidirectional Lateral Superlattice (2006)
  • 著者名/発表者名: A.Endo and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1347-1348
• [雑誌論文] Large Magnetoresistance through an Interface between a Two-Dimensional Hole System and a (GaMn)As Layer (2006)
  • 著者名/発表者名: Y.Hashimoto, T.Yamagishi, S.Katsumoto and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1492-1493
• [雑誌論文] The Fano-Kondo Effect in Semiconductor Quantum Dots (2006)
  • 著者名/発表者名: S.Katsumoto, M.Sato, H.Aikawa and Y.Iye
  • 雑誌名: AIP Conf. Proc 850 ページ: 1361-1364
• [雑誌論文] Superconducting Wire Network under Spatially Modulated Magnetic Field (2006)
  • 著者名/発表者名: Hirotaka Sano, Akira Endo, Shingo Katsumoto and Yasuhiro Iye
  • 雑誌名: Proc. 8th Int. Symp(on Foundation of Quantum Mechanics in the Light of New Technology (ISQM-Tokyo '05), ed. S.Ishioka and K.Fujikawa, (World Scientific)) ページ: 212-215
• [雑誌論文] Aharonov-Bohm Effects in Antidot Arrays and their Decoherence (2006)
  • 著者名/発表者名: M.Kato, H.Tanaka, A.Endo, S.Katsumoto and Y.Iye
  • 雑誌名: Proc. 8th Int. Symp(on Foundation of Quantum Mechanics in the Light of New Technology (ISQM-Tokyo '05), ed. S.Ishioka and K.Fujikawa, (World Scientific)) ページ: 109-112
• [雑誌論文] Tunable Fano-Kondo effect in a quantum dot with an Aharonov-Bohm Ring (2006)
  • 著者名/発表者名: S. Katsumoto, H. Aikawa, M. Eto, Y. Iye
  • 雑誌名: phys. stat. sol (c) 3 ページ: 4208-4213
• [雑誌論文] Dispersive Lineshape of the Resistively-Detected NMR in the Vicinity of Landau Level Filling ν=1 (2006)
  • 著者名/発表者名: Katsuyoshi Kodera, Hisashi Takado, Akira Endo, Shingo Katsumoto and Yasuhiro Iye
  • 雑誌名: phys. stat. sol (c) 3 ページ: 4380-4383
• [雑誌論文] Metastable Spin Configuration of Two-Dimensional Hole System in the Quantum Hall Regime (2006)
  • 著者名/発表者名: Katsuyoshi Kodera, Hisashi Takado, Akira Endo, Yoshiaki Hashimoto, Shingo Katsumoto and Yasuhiro Iye
  • 雑誌名: phys. stat. sol (c) 3 ページ: 4255-4258
• [学会発表] Study of vortex state in mesoscopic superconductors by Hall magnetometry (2008)
  • 著者名/発表者名: Hirotaka Sano, Akira Endo, Shingo Katsumoto and Yasuhiro Iye
  • 学会等名: The 25th Int. Conf. on Low Temp. Physics (LT25) Leiden
  • 発表場所: The Netherland(6-13)
  • 年月日: 20080800
• [学会発表] Resistivity enhancement in quasiperiodic unidirectional lateral superlattices (2007)
  • 著者名/発表者名: Akira Endo, Yasuhiro Iye
  • 学会等名: The 17th Int. Conf
  • 発表場所: on the Electronic Properties of Two-Dimensional Systems (EP2DS-17) Genova(15-20)
  • 年月日: 20070700
• [学会発表] Evolution of h/2e Aharonov-Bohm oscillation with the Zeeman energy around an antidot (2007)
  • 著者名/発表者名: Masanori Kato, Akira Endo, Shingo Katsumoto, Yasuhiro Iye
  • 学会等名: The 17th Int. Conf
  • 発表場所: on the Electronic Properties of Two-Dimensional Systems (EP2DS-17) Genova(15-20)
  • 年月日: 20070700
• [図書] 21世紀の物質科学-第5章:ナノの世界で物質を組み立てる (2008)
  • 著者名/発表者名: 家泰弘
  • 出版者: 培風館