Physics of high-Tc josephson junctions and SQUIDs

H. C. Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Effects of magnetic fields and microwave radiation on I-V characteristics of YBa2Cu3Oy high-Tc Josephson junctions, SQUIDs and Josephson arrays were reported in this experiment, with special emphasis focused on the effects of microwave radiation. In addition to the ordinary constant-voltage steps resulting from the ac Josephson effect, noninteger constant voltage steps are occasionally observed under microwave radiation. We attribute these noninteger constant-voltage steps to the flux coupled to junctions or SQUIDs. Resistive SQUIDs disclose V - Φ modulation without a biased current. The peak to peak value ΔV of a V - Φ curve is enhanced by microwave radiation.

Original languageEnglish
Pages (from-to)364-373
Number of pages10
JournalChinese Journal of Physics
Issue number2 II
Publication statusPublished - 1996

ASJC Scopus subject areas

  • General Physics and Astronomy


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