Weak links and dc SQUIDS on artificial nonsymmetric grain boundaries in YBa2Cu3O7-δ
| Data(s) |
1991
|
|---|---|
| Resumo |
We have studied weak links and dc-SQUIDs made from pulsed laser deposited YBa2Cu3O7-δ thin films on Y-ZrO 2 bicrystal substrates. The transport properties of the weak links were studied as a function of the misorientation angle (θ) between the two halves of the bicrystal and an exponential dependence of the weak link critical current density was observed for angles up to 40°at 77 K. Josephson effects with clear microwave and magnetic field responses were observed. An optimum dc-SQUID performance at 77 K was obtained for θ=32°. At this temperature, we achieved a periodic magnetic field response with a modulation depth of 12 μV. |
| Identificador | |
| Publicador |
American Institute of Physics |
| Relação |
DOI:10.1063/1.105783 Ivanov, Z.G., Nilsson, P.Å, Winkler, D., Alarco, J.A., Claeson, T., Stepantsov, E.A., & Tzalenchuk, A.Ya (1991) Weak links and dc SQUIDS on artificial nonsymmetric grain boundaries in YBa2Cu3O7-δ. Applied Physics Letters, 59(23), pp. 3030-3032. |
| Fonte |
Institute for Future Environments; Science & Engineering Faculty |
| Tipo |
Journal Article |
