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Study of Non-equilibrium Superconductivity in HTSC and Electronic Application

Research Project

Project/Area Number 63460058
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Applied materials
Research InstitutionOsaka University

Principal Investigator

KOBAYASHI Takeshi  Osaka University, Faculty of Engineering Science, Professor, 基礎工学部, 教授 (80153617)

Co-Investigator(Kenkyū-buntansha) FUJIWARA Yasufumi  Osaka University, Faculty of Engineering Science, Research Assistant, 基礎工学部, 助手 (10181421)
斗内 政吉  大阪大学, 基礎工学部, 助手 (40207593)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1989: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1988: ¥6,800,000 (Direct Cost: ¥6,800,000)
Keywordsoxide superconductor / non-equilibrium / quasi-particle / epitaxial growth / transistor / 高温超伝導 / 超伝導トランジスタ / エピタキシ
Research Abstract

In this project, we have investigated the possible occurrence of the "Non-equilibrium Superconductivity" in the new high Tc oxide superconducting materials and applied this phenomenon to the transistor amplifier.
We started the work by preparing the epitaxial YBaCuO thin films. So far, our epitaxial films have the zero-resistance temperature as high as 86 K. Off course, we have no problem in making the polycrystalline films. The test samples were fabricated by using both the epitaxial and polycrystalline films. They equipped the source and drain electrodes. At the central portion of the channel, the gate electrode for the quasi-particle injection was formed.
The test samples showed the channel current modulation via the injection of the quasi-particles. Most of them exhibited the current amplification at low temperature. Comparison oi the theory with the experimental results indicated that the observed current modulation must be due to the development of the non-equilibrium superconductivity in the high Tc superconductors. Particularly, the BCS model explained the observations quite reasonably.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Y.Nishimori,Y.Fujiwara,T.Kobayashi: "As-grown BSCCO Thin Fiim Formation by Electron Cyclotron Resonance Microwave Plasma Sputtering" Jpn.J.Appl.Phys. 28. L1220-L1222 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi,K.Hashimoto,U.Kabasawa,M.Tonouchi: "THREE TERMINAL YBaCuO JOSEPHSON DEVICE WITH QUASI-PARTICLE INJECTION GATE" IEEE Trans.on Magn.25. 927-930 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 小林猛,井寄将博: "高温超伝導薄膜エピタキシャル成長の基板依存性" 表面科学. 10. 265-270 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] U.Kabasawa,K.Asano,T.Kobayashi: "Electric Field Effect on AI-MgO-YBa_2Cu_3O_y Structure" Jpn.J.Appl.Phys.29. L86-L88 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 小林猛: "高温超伝導体の応用" 応用物理. 58. 727-733 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 藤原康文,小林猛: "高温超伝導体のルミネセンス評価" 応用物理. 58. 52-58 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 小林猛(編著): "高温超伝導材料プロセスと応用技術" IPC出版社, 400 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi,U.Kabasawa(分担執筆): "Studies of High Temperature Superconductors" Nova Science Publishers,Inc(N.Y.), 382 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Y.Nishimori, Y.Fujiwara and T.Kobayashi: "As-grown BSCCO Thin Film Formation by Electron Cyclotron Resonance Microwave Plasma Sputtering." Jpn. J. Appl. Phys. 28, L1220-L1222, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi, K.Hashimoto, U.Kabasawa and T.Kobayashi: "THREE TERMINAL YBaCuO JOSEPHSON DEVICE WITH QUASI-PARTICLE INJECTION GATE" IEEE Trans. on Magn. MAG-25, 927-930, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi and M.Iyori: "Dependence of High Tc Superconductor Epitaxy on the Substrate Material" J. Surface Science Jpn. 10, 265-270, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] U.Kabasawa, K.Asano and T.Kobayashi: "Electric Field Effect on Al-MgO-YBa_2Cu_3O_y Structure (in Japanese)" Jpn. J. Appl. Phys. 29, L86-L88, 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi: "Applications of High Tc Superconductors (in Japanese)" OYOBUTURI 58, 727-733, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi (Edt.): High Tc Superconductor Material Process and Applications (in Japanese). Int. Publication Co., 400 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Kobayashi and U.Kabasawa: Studies of High Temperature Superconductors. Nova Science Publishers, Inc (N.Y.), 382 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Y.Nishimori,Y.Fujiwara,T.Kobayashi: "As-grown BSCCO Thin Film Formation by Electron Cyclotron Resonance Microwave Plasma Sputtering." Jpn.J.Appl.Phys.28. L1220-L1222 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Kobayashi,K.Hashimoto,U.Kabasawa,M.Tonouchi: "THREE TERMINAL YBaCuO JOSEPHSON DEVICE WITH QUASI-PARTICLE INJECTION GATE" IEEE Trans.on Magn.25. 927-930 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 小林猛、井寄将博: "高温超伝導薄膜エピタキシャル成長の基板依存性" 表面科学. 10. 265-270 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] U.Kabasawa,K.Asano,T.Kobayashi: "Electric Field Effect on Al-MgO-YBa_2Cu_3Oy Structure" Jpn.J.Appl.Phys.29. L86-L88 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 小林猛: "高温超伝導体の応用" 応用物理. 58. 727-733 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 藤原康文、小林猛: "高温超伝導体のルミネセンス評価" 応用物理. 58. 52-58 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 小林猛(編著): "高温超伝導材料プロセスと応用技術" IPC出版社, 400 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] T.Kobayashi,U.Kabasawa(分担執筆): "Studies of High Temperature Superconductors" Nova Science Publishers,Inc.(N.Y.), 382 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 小林猛: 粉体および粉末冶金. 35. 392-396 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Kobayashi: Applied Superconductivity Conference(San Francisco)ED-19. (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Takahashi: Nippon Seramic Kyokai Gakujutsu Ronbunshi. 94(4). 489-490 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] S.Minomo: Japanese Journal Applied Physics. 27. L411-L413 (1988)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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