中国物理B ›› 2016, Vol. 25 ›› Issue (5): 57401-057401.doi: 10.1088/1674-1056/25/5/057401

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Developing Josephson junction array chips for microvolt applications

Wenhui Cao(曹文会), Jinjin Li(李劲劲), Yuan Zhong(钟源), Yuan Gao(高原), Honghui Li(李红晖), Zengmin Wang(王曾敏), Qing He(贺青)   

  1. National Institute of Metrology, Beijing 100029, China
  • 收稿日期:2015-12-24 修回日期:2016-01-15 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Wenhui Cao E-mail:caowh@nim.ac.cn;jinjinli@nim.ac.cn
  • 基金资助:
    Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2011BAK15B00), the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61401418), and the Basic Research Foundation of National Institute of Metrology of China (Grant No. 20-AKY1415).

Developing Josephson junction array chips for microvolt applications

Wenhui Cao(曹文会), Jinjin Li(李劲劲), Yuan Zhong(钟源), Yuan Gao(高原), Honghui Li(李红晖), Zengmin Wang(王曾敏), Qing He(贺青)   

  1. National Institute of Metrology, Beijing 100029, China
  • Received:2015-12-24 Revised:2016-01-15 Online:2016-05-05 Published:2016-05-05
  • Contact: Wenhui Cao E-mail:caowh@nim.ac.cn;jinjinli@nim.ac.cn
  • Supported by:
    Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2011BAK15B00), the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61401418), and the Basic Research Foundation of National Institute of Metrology of China (Grant No. 20-AKY1415).

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摘要： Josephson junction array chips for microvolt applications have been designed and fabricated. A voltage step as small as 1 μV has been observed for a single junction in the array when it is driven by 483.59 MHz microwave. By selecting different parts of the array, it can output a voltage from 1 μV to 256 μV. The flat region of the voltage steps is over 200 μA. This kind of array is useful for potential microvolt applications.

关键词: Josephson junction arrays, voltage standard, niobium

Abstract: Josephson junction array chips for microvolt applications have been designed and fabricated. A voltage step as small as 1 μV has been observed for a single junction in the array when it is driven by 483.59 MHz microwave. By selecting different parts of the array, it can output a voltage from 1 μV to 256 μV. The flat region of the voltage steps is over 200 μA. This kind of array is useful for potential microvolt applications.

Key words: Josephson junction arrays, voltage standard, niobium

中图分类号:  (Josephson junction arrays and wire networks)

  • 74.81.Fa
06.20.fb (Standards and calibration) 74.70.-b (Superconducting materials other than cuprates)