Biepitaxial Josephson junctions were prepared on MgO and SrTiOa substrates. The obtained electrical properties as superconducting critical temperature To, critical current density Jc ~ 104A/cm2(30 K), specific junction conductance ~N ~ 50/(pf~cm 2) and the IcRn-product ~ 0.1 mV (30 K) are similar on
Quantum properties of d-wave YBa2Cu3O7−δ Josephson junction
✍ Scribed by Floriana Lombardi; Thilo Bauch; Jesper Johansson; Karin Cedergren; Tobias Lindström; Francesco Tafuri; Evgueni Stepantsov
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 315 KB
- Volume
- 435
- Category
- Article
- ISSN
- 0921-4534
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We have observed energy level quantization in an all high critical temperature superconductor d-wave Josephson junction. From the measurements we have also extracted the quality factor Q of the junction which is of the order of 40. These results indicate that the role of dissipation mechanisms in hi
The magnetic field and temperature dependence of the Josephson supercurrent are measured in different temperature ranges in order to study the tunneling effect in YBa2fu307\_ 8 samples. Causes for tunneling will be discussed.