Experimental study of noise characteristics of large-β dc SQUID with resistively shunted inductance

Satoshi Kohjiro, Keiji Enpuku, Keiji Yoshida, Kaoru Yamafuji

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

Noise characteristics of dc SQUIDs in large β regimes have been studied experimentally in the case when a SQUID inductance is resistively shunted. Here, β=2LI00 is the modulation parameter, L is the SQUID inductance, I0 is the critical current of the Josephson junction and Φ0 is the flux quantum. It is shown experimentally that the performance of the SQUID does not degrade significantly even for large β values; for example, the minimum energy resolution of the SQUID is as small as ε=25h and the flux region where ε<50h is as wide as 0.1Φ0, even for the case β=12, where h is the Planck constant. The experimental results agree quantitatively with the theoretical ones.

本文言語英語
ページ(範囲)1871-1874
ページ数4
ジャーナルJapanese Journal of Applied Physics
27
10 R
DOI
出版ステータス出版済み - 10 1988

All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)

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