Untouched Nano-gear

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760178
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Intelligent mechanics/Mechanical systems
• Research Institution: National Institute for Materials Science
• Principal Investigator: YUAN Jie National Institute for Materials Science, ナノテクノロジー基盤萌芽ラボ, NIMSポスドク研究員 (70469790)
• Project Period (FY): 2008 – 2009
• Keywords: マイクロ・ナノメカトロニクス / ナノギア / ジョセフソン磁束 / Qubit / 計算機システム / 超伝導材料・素子 / マイクロ・ナノデバイス / スピンエレクトロニクス / 分子モーター

Research Abstract

We have demonstrated the operation of a deterministic fluxon ratchet in a stack of 30 intrinsic Bi2Sr2CaCu2O8 Josephson junctions with the shape of a gear including 20 asymmetric teeth. It produces a pronounced rectified voltage at a 12 GHz drive frequency. As the plasma frequency can be as high as hundreds of GHz, the rectification frequencies as well as the operation frequencies of the superconducting gears can be up to sub-THz regime. Quite recently, we have also successfully fabricated electron-doped superconducting films Pr0.9LaCe0.1CuO4 (PLCCO) and investigated their transport properties for their applications in untouched gears. All the results suggest that the proposed untouched nano-gear can be realized with unique properties, though more efforts should be taken.

Research Products

• [Journal Article] Hot spots and waves in Bi2Sr2CaCu2O8 intrinsic Josephson junction stacks - a study by Low Temperature Scanning Laser Microscopy (2009)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, A. Iishi, S. Arisawa, T. Hatano, T. Yamashita, D. Koelle, R. Kleiner
  • Journal Title: Phys. Rev. Lett. 102 Pages: 017006
  • Peer Reviewed
• [Journal Article] Growth of electron-doped superconductor Pr0. 9LaCe0. 1CuO4 films and their applications to intrinsic Josephson junctions (2009)
  • Author(s): J. Yuan, H.B. Wang, I. Iguchi, Y.Y. Hsu, S. Arisawa, A. Ishii, T. Hatano
  • Journal Title: IEEE Transactions on Applied Superconductivity 19 Pages: 3443-3446
  • Peer Reviewed
• [Journal Article] In-plane magnetoresistance of electron-doped superconducting thin films Pr0. 9LaCe0. 1CuO4 (2009)
  • Author(s): J. Yuan, H.B. Wang, I. Iguchi, S. Arisawa, A. Ishii, T. Hatano
  • Journal Title: Physica C 469 Pages: 1140-1142
  • Peer Reviewed
• [Journal Article] Temperature- and field-dependent leakage current of epitaxial YMnO3 /GaN heterostructure (2009)
  • Author(s): H. Wu, J. Yuan, T. Peng, Y. Pan, T. Han, C. Liu
  • Journal Title: Appl. Phys. Lett. 94 Pages: 122904
  • Peer Reviewed
• [Journal Article] Control of the epitaxial orientation and reduction of the interface leakage current in YMnO3/GaN heterostructures (2009)
  • Author(s): H. Wu, J. Yuan, T. Peng, Y. Pan, T. Han, K. Shen, B.R. Zhao, C. Liu
  • Journal Title: Journal of Physics D: Applied Physics 42 Pages: 185302
  • Peer Reviewed
• [Journal Article] Preparation of electron-doped La2-xCexCuO4±δthin films with various Ce doping by dc magnetron sputtering (2009)
  • Author(s): B.X. Wu, K. Jin, J. Yuan, H.B. Wang, T. Hatano, B.R. Zhao, B.Y. Zhu
  • Journal Title: Physica C 469 Pages: 1945-1949
  • Peer Reviewed
• [Journal Article] Thickness-induced insufficient oxygen reduction in La_<2-x>Ce_xCuO_<4±δ> thin films (2009)
  • Author(s): B.X. Wu, K. Jin, J. Yuan, H.B. Wang, T Hatano, B.R. Zhao, B.Y. Zhu
  • Journal Title: Supercond. Sci. Technol. 22 Pages: 085004
  • Peer Reviewed
• [Journal Article] In-plane stress effect on the electron-doped superconductor La1. 89Ce0. 11CuO4 thin films (2008)
  • Author(s): J. Yuan, S.J. Zhu, K. Jin, H. Wu, B. Xu, X.G. Qiu, B.R. Zhao
  • Journal Title: Physica C 468(15-20) Pages: 1876-1878
  • Peer Reviewed
• [Presentation] Observation of THz oscillations in stacked Josephson junctions with low temperature scanning laser microscope (2010)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Z.G. Jiang, Y.Y. Zhong, P.H. Wu, A. Iishi, T. Hatano, G. Boris, M. Gruenzweig, D. Koelle, R. Kleiner
  • Organizer: 研究討論会「テラヘルツ電子デバイスの新展開」
  • Place of Presentation: 仙台
  • Year and Date: 20100225-20100226
• [Presentation] Terahertz Emission from a Slice of Cuprate Superconductor-Excitation, Synchronization, Detection, and Future Application (2010)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Z.G. Jiang, Y.Y. Zhong, P.H. Wu, A. Iishi, T. Hatano, G. Boris, M. Gruenzweig, D. Koelle, R. Kleiner
  • Organizer: The First JST-DFG Workshop on Terahertz Superconductor Electronics
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20100221-20100224
• [Presentation] Terahertz electronics on the atomic scale using intrinsic Josephson junctions in cuprate superconductors (2010)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Boris Gross, Z.G. Jiang, M. Gruenzweig, Y.Y. Zhong, A. Iishia, P.H. Wu, T. Hatanoa, D. Koelle, R. Kleiner
  • Organizer: DFG-JST Workshop on Nanoelectronics
  • Place of Presentation: Bad Honnef
  • Year and Date: 20100117-20100119
• [Presentation] Tunable THz sources with large Josephson junctions (2009)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Z.G. Jiang, Y.Y. Zhong, P.H. Wu, A. Iishi, T. Hatano, G. Boris, M. Gruenzweig, D. Koelle, R. Kleiner
  • Organizer: The International Workshop on Terahertz Radiation and Metamaterials
  • Place of Presentation: Benasque, Spain
  • Year and Date: 20091215-20091222
• [Presentation] Observation of THz oscillations in stacked Josephson junctions with low temperature scanning laser microscope (2009)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Z.G. Jiang, Y.Y. Zhong, P.H. Wu, A. Iishi, T. Hatano, G. Boris, M. Gruenzweig, D. Koelle, R. Kleiner
  • Organizer: Eastern Asia Symposium on Superconductor Electronics
  • Place of Presentation: Nanjing, China
  • Year and Date: 20091011-20091015
• [Presentation] Terahertz Generation in Large Bi2Sr2CaCu2O8 Intrinsic Josephson Junction Stacks (2009)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, G. Matthias, A. Iishi, S. Arisawa, T. Hatano, T. Yamashita, D. Koelle, R. Kleiner
  • Organizer: 12th International Superconductive Electronics Conference (ISEC 2009)
  • Place of Presentation: Fukuoka, JAPAN
  • Year and Date: 20090616-20090619
• [Presentation] Intrinsic Josephson junctions in high temperature superconductors as generators for THz radiation (2009)
  • Author(s): S. Guenon, M. Grunzweig, D. Koelle, R. Kleiner, H.B. Wang, J. Yuan, A. Iishi, S. Arisawa, T. Hatano
  • Organizer: "SEFIRA 09" (Superconducting electronics front end infrastructure)
  • Place of Presentation: Frejus
  • Year and Date: 20090526-20090528
• [Presentation] Intrinsic Josephson junctions in high temperature superconductors as generators for THz radiation (2009)
  • Author(s): S. Guenon, M. Grunzweig, D. Koelle, R. Kleiner, H.B. Wang, J. Yuan, A. Iishi, S. Arisawa, T. Hatano
  • Organizer: WE-Heraeus Seminar on Microwaves for Condensed Matter Physics
  • Place of Presentation: Bad Honnef
  • Year and Date: 20090405-20090408
• [Presentation] Laser imaging of hot spots and waves in Bi2Sr2CaCu2O8 intrinsic Josephson junctions (2009)
  • Author(s): S. Guenon, M. Gruenzweig, H.B. Wang, J. Yuan, A. Iishi, S. Arisawa, T. Hatano, T. Yamashita, D. Koelle, R. Kleiner
  • Organizer: DPG Spring Meeting
  • Place of Presentation: TU Dresden, Dresden, Germany.
  • Year and Date: 20090322-20090327
• [Presentation] Investigation of self-heating in BiSrCaCu2O8 single crystals via Low Temperature Scanning Laser Microscopy (2009)
  • Author(s): M. Gruenzweig (Tuebingen University), S. Guenon, H.B. Wang, J. Yuan, A. Iishi, S. Arisawa, T. Hatano, T. Yamashita, D. Koelle, R. Kleiner
  • Organizer: DPG Spring Meeting
  • Place of Presentation: TU Dresden, Dresden, Germany.
  • Year and Date: 20090322-20090327
• [Presentation] Tunable THz Josephson oscillators (2009)
  • Author(s): H.B. Wang, S. Guenon, J. Yuan, Z.G. Jiang, Y.Y. Zhong, P.H. Wu, A. Iishi, T. Hatano, G. Boris, M. Gruenzweig, D. Koelle, R. Kleiner
  • Organizer: 東北大学電気通信研究所共同プロジェクト研究研究会「環境負荷低減に資する超伝導計算機技術に関する研究」
  • Place of Presentation: 仙台
  • Year and Date: 2009-11-26
• [Presentation] Inside the Terahertz gap - intrinsic Josephson junctions in high temperature superconductors (2009)
  • Author(s): S. Guenon, M. Grunzweig, D. Koelle, R. Kleiner, H.B. Wang, J. Yuan, A. Iishi, S. Arisawa, T. Hatano
  • Organizer: Colloquium
  • Place of Presentation: University of Graz
  • Year and Date: 2009-04-28
• [Presentation] BSCCO単結晶にc軸以外の方向から磁場を印加した時のホール効果 (2009)
  • Author(s): 袁潔, 王華兵, 有沢俊一, 石井明, 羽多野毅
  • Organizer: 2009応用物理学春季講演会
  • Place of Presentation: 筑波大学
  • Year and Date: 2009-04-02
• [Presentation] In-plane magnetoresistance of electron-doped superconducting thin films Pr0. 9LaCe0. 1CuO4 (2008)
  • Author(s): J. Yuan, H.B. Wang, I. Iguchi, S. Arisawa, A. Ishii, T. Hatano
  • Organizer: 21st international symposium on superconductivity
  • Place of Presentation: Tsukuba, Japan.
  • Year and Date: 2008-10-28
• [Presentation] Growth of electron-doped superconductor Pr0. 9LaCe0. 1CuO4 films and their applications to intrinsic Josephson junctions (2008)
  • Author(s): J. Yuan, H.B. Wang, I. Iguchi, Y.Y. Hsu, S. Arisawa, A. Ishii, T. Hatano
  • Organizer: Applied Superconductivity Conference 2008
  • Place of Presentation: Chicago, U.S. A
  • Year and Date: 2008-08-20