Relaxation oscillators made of ybacuo thin films

Takanobu Kisu, Keiji Enpuku, Keiji Yoshida, Masakatsu Takeo, Kaoru Yamafuji

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


It has been found that YBaCuO thin films exhibit hysteretic I- V characteristics in the case of high critical current densities of yc(4.2 K)> 106 A/cm2. By using the hysteretic I-V characteristics, relaxation oscillators can be constructed, where YBaCuO thin films are shunted by an external inductance and a resistance. The properties of the relaxation oscillator agree well with those of an equivalent circuit model. A preliminary experiment is also made on the optical response of the oscillation frequency in order to study the possibility of the relaxation oscillator as an optical sensor.

Original languageEnglish
Pages (from-to)2056-2059
Number of pages4
JournalJapanese Journal of Applied Physics
Issue number11
Publication statusPublished - Nov 1990

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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