A single flux quantum circuit with a ferromagnet-based Josephson π-junction
| Autor: | V. A. Oboznov, A. N. Rossolenko, Alexander B. Zorin, F Maibaum, M. Khabipov, Vladimir Ryazanov, Vitaly V. Bolginov, D Balashov |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
Superconductivity Josephson effect Condensed matter physics Metals and Alloys Condensed Matter Physics Pi Josephson junction Computer Science::Emerging Technologies Condensed Matter::Superconductivity Rapid single flux quantum Magnetic flux quantum Qubit Materials Chemistry Ceramics and Composites Superconducting tunnel junction Electrical and Electronic Engineering Electronic circuit |
| Zdroj: | Superconductor Science and Technology. 23:045032 |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/0953-2048/23/4/045032 |
| Popis: | We report on the functionality of a Nb-based superconducting single flux quantum (SFQ) toggle flip-flop (TFF) circuit, comprising a complementary superconductor–ferromagnet–superconductor (SFS) Josephson π-junction. The SFS junction was used as a phase shifting element inserted in the storage loop of the TFF. The fabricated circuits demonstrated correct functionality with the operation parameter ranges of ± 20%. The application of SFS π-junctions makes the SFQ circuits very compact, may substantially improve their stability, and may also be suitable for integration with Josephson quantum circuits (qubits). |
| Databáze: | OpenAIRE |
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