High Temperature Superconducting Thin Film Josephson Junctions
| Autor: | Š. Beňačka, Marianna Španková, Zs. Öszi, Stefan Chromik, Ivan Kostic |
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| Rok vydání: | 2004 |
| Předmět: |
Condensed Matter::Quantum Gases
Superconductivity Josephson effect Materials science Condensed matter physics Ion beam General Physics and Astronomy Pi Josephson junction Vacuum deposition Condensed Matter::Superconductivity Physics::Accelerator Physics Superconducting tunnel junction Thin film Quantum tunnelling |
| Zdroj: | Czechoslovak Journal of Physics. 54:457-460 |
| ISSN: | 1572-9486 0011-4626 |
| DOI: | 10.1007/s10582-004-0118-z |
| Popis: | High-temperature superconducting YBa2Cu3Ox (YBCO) thin films (120 nm thick) were used to prepare YBCO/B/YBCO Josephson ramp-type junctions with tunneling barrier (B) performed by Ar ion beam modification of the ramp area surface. After the sample transportation into a high vacuum deposition chamber the amorphised ramp surface was annealed and then the YBCO counter electrode was sputtered. The area of the ramp-type YBCO junction was determined by a photoresist mask and Ar ion beam etching. Current voltage characteristics and current steps during irradiation of the samples by microwaves confirmed the presence of Josephson effect in the made structures. |
| Databáze: | OpenAIRE |
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