1 pA/$\sqrt{\text{Hz}}$ Amplifier Using Superconducting Quantum Interference Device Array

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著者

    • Myoren Hiroaki
    • Department of Electrical and Electronic Systems, Faculty of Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, Saitama 338-8570, Japan
    • Takada Susumu
    • Department of Electrical and Electronic Systems, Faculty of Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, Saitama 338-8570, Japan
    • Chinone Kazuo
    • Seiko Instruments Inc., 563 Takatsuka-Shinden, Matsudo, Chiba 270-2222, Japan

抄録

An ultrahigh current resolution of 1 pA/$\sqrt{\text{Hz}}$ was achieved by a superconducting quantum interference device (SQUID) amplifier, which consisted of 128 repeated dc-SQUID elements. Each element had a 7-turn input coil. The SQUID amplifier was fabricated using a Nb/AlOx/Nb fabrication process. To evaluate current resolution, flux noise and flux-voltage ($\Phi$-$V$) characteristics were measured at 4.2 K. The $\Phi$-$V$ characteristics showed a large voltage swing of more than 4 mV. The SQUID amplifier was operated at a smooth slope in the $\Phi$-$V$ characteristics, while asymmetric behavior appeared in the same $\Phi$-$V$ characteristics.

収録刊行物

  • Japanese journal of applied physics. Pt. 2, Letters

    Japanese journal of applied physics. Pt. 2, Letters 42(11B), L1375-L1376, 2003-11-15

    INSTITUTE OF PURE AND APPLIED PHYSICS

参考文献:  4件中 1-4件 を表示

  • <no title>

    HUBER M. E.

    IEEE Trans. Appl. Supercond. 11, 1251, 1991

    被引用文献1件

  • <no title>

    KETCHEN M. B.

    IEEE Trans.Magn. 17, 387, 1981

    被引用文献3件

  • <no title>

    MOROOKA T.

    IEEE Trans. Appl. Supercond. 11, 751, 2001

    被引用文献2件

  • <no title>

    ENPUKU K.

    J. Appl. Phys. 72, 1000, 1992

    被引用文献2件

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10012565232
  • NII書誌ID(NCID)
    AA10650595
  • 本文言語コード
    EN
  • 資料種別
    ART
  • ISSN
    0021-4922
  • データ提供元
    CJP書誌  CJP引用  JSAP 
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