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Investigation on Properties of Kinetic Inductance of High T_c Superconducting Thin Films and its Device Application

Research Project

Project/Area Number 04650382
Research Category

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

Allocation TypeSingle-year Grants
Research Field 計測・制御工学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

ENPUKU Keiji  Kyushu Univ., Dept.of Electronics, Associate Prof., 工学部, 助教授 (20150493)

Co-Investigator(Kenkyū-buntansha) KISU Takanobu  Kyushu Univ., Dept.of Electronics, Research Assist., 工学部, 助手 (00221911)
YOSHIDA Keiji  Kyushu Univ., Dept.of Electronics, Associate Prof., 工学部, 助教授 (80108670)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsHigh Tc superconducting thin film / Kinetic inductance / Nonlinear inductance / Magnetic penetration depth / Current distribution / Optical response / 高温超伝導 / カイネテックインダクタンス
Research Abstract

In this project, we have studied properties of kinetic inductance of high Tc superconducting thin films, and discuss possibility of optical detector using kinetic inductance. High quality YBaCuO thin films, whose thickness is smaller than magnetic penetration depth, are prepared using off-axis magnetron sputtering method, and kinetic inductance of the film is measured with LC-resonant circuit. Dependencies of kinetic inductance of temperature, film quality and film geometry are clarified experimentally, and observed properties are compared with theoretical results. First, it is shown that temperature dependence of kinetic inductance is explained well with BCS theory. Next, observed values of kinetic are shown to be consistent with theoretical ones predicted from critical temperature and resistivity of films. Finally, it is shown that dependence of kinetic inductance on film geometry can be explained quantitatively by taking into account current distribution in the film.
Nonlinear properties of kinetic inductance are also clarified theoretically using Ginzburg-Landau (GL) theory. It is shown that kinetic inductance can be modulated with bias current and magnetic field. This result means that kinetic inductance can be used as parametric inductance. These theoretical predictions are confirmed experimentally. From these results, we have made modeling of kinetic inductance of high Tc superconducting thin films, and discussed method for improving properties of kinetic inductance for use of optical detector.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Keiji Yoshida: "Modeling of kinetic-inductance coplanar stripline with NbN thin films" Japanese Journal of Applied Physics. 31. 3844-3850 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takanobu Kisu: "Dependence of magnetic field penetration depth on resistivity and critical temperature in c-axis-oriented YBaCuO thin films" Japanese Journal of Applied Physics. 31. L1027-L1030 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Takanobu Kisu: "Magnetic penetration depth and critical current in YBaCuO thin films" IEEE Transactions on Applied Superconductivity. 3. 2961-2964 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 木須 隆暢: "オフアクシスYBaCuOスパッタ成膜における水蒸気添加効果" 電子情報通信学会論文誌. J76-C-II. 351-356 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Keiji Enpuku: "Modulation of kinetic inductance of high Tc superconducting thin films with fias current" Japanese Journal of Applied Physics. 32. 3804-3810 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 円福敬二: "YBaCuO薄膜のカイネティックインダクタンス(II)" 電子情報通信学会技術報告. SCE93-23. 33-38 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Yoshida et al.: "Modeling of kinetic-inductance coplanar stripline with NbN thin films" Jpn.J.Appl.Phys. vol.31. 3844-3850 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Kisu et al.: "Dependence of magnetic penetration depth on resistivity and critical temperature in c-axis-oriented YBaCuO thin films." Jpn.J.Appl.Phys. vol.31. L1027-L1030 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Kisu et al.: "Magnetic penetration depth and critical current in YBaCuO thin films." IEEE Trans.on Appl.Supercond.vol.3. 2961-2964 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Kisu et al.: "The effect of water vapor on the off-axis sputter deposition of YBaCuO thin films (in Japanese)" Papers in Denshi-Jyoho-Tsushin Gakkai. vol.J76-C-II. 351-356 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Enpuku et al.: "Modulation of kinetic inductance of high Tc superconducting thin film with bias current" Jpn.J.Appl.Phys. vol.32. 3804-3810 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Enpuku et al.: "Properties of kinetic inductance of YBaCuO thin films (II)(in Japanese)" Tech.Report in Denshi-Jyoho-Tsushin Gakkai. vol.SCE93-23. 33-38 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 木須 隆暢: "オフアクシス YBaCuOスパッタ成膜における水蒸気添加効果" 電子情報通信学会論文誌. J76-C-II. 351-356 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kenji Enpuku: "Modalation of kinetic inductance of high Te Superconducting thin films with bias current" Japanese Journal of Applied Physics. 32. 3804-3810 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 円福 敬二: "YBaCuO薄膜のカイネティックインダクタンス(II)" 電子情報通信学会技術報告. SCE93-23. 33-38 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Kisu: "Dependence of magnetic field penetration depth on resistivity and critical tenperature in Caxis oriented YBaCuO thin films" Japanese Joumal of Applied Physics. 31. L1027-L1030 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yoshida: "Modeling of Kinetic-induetance coplanar strepline with NbN thin films" Japanese Journal of Applied Physics. 31. 3844-3850 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Kisu: "Magnetic penetration depth and critieal current in YBaCuO thin films" IEEE Transactions on Magnetics. MAG-27. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Enpuku: "Effect of thermal noise on the characteristics of high Tc Superionducting guantum interference device" Journel of Applied Physics. (1993)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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