We have observed anomalous voltage vs. magnetic flux modulations in YBCO dc-SQUIDs employing step-edge junctions. The anomaly consists inphase inversion and frequency doubling of the voltage modulations in a restricted range of bias currents. We ascribe this phenomenon to the non-negligible capacitance of the junctions in the SQUID, as confirmed by numerical simulations. © 1994.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Barbanera, S., Boffa, V., Gambardella, U., Leoni, R., Matarazzo, S., Murtas, F., ... Romeo, C. (1994). Anomalous voltage modulation observed in YBCO dc-SQUIDs based on step-edge junctions. Physica C: Superconductivity and its Applications, 235-240(PART 5), 3267 - 3268. https://doi.org/10.1016/0921-4534(94)91160-6