Superconducting contact and quantum interference between two-dimensional van der Waals and three-dimensional conventional superconductors
| Autor: | Benjamin Hunt, Olivia Lanes, Susheng Tan, Takashi Taniguchi, Michael Hatridge, David Pekker, Michael Sinko, Kenji Watanabe, Sergio C. de la Barrera |
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| Rok vydání: | 2021 |
| Předmět: |
Josephson effect
Materials science Physics and Astronomy (miscellaneous) FOS: Physical sciences Flux 02 engineering and technology Interference (wave propagation) 01 natural sciences Superconductivity (cond-mat.supr-con) Crystal symbols.namesake Condensed Matter::Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences General Materials Science 010306 general physics Superconductivity Range (particle radiation) Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Condensed Matter - Superconductivity 021001 nanoscience & nanotechnology Magnetic flux 3. Good health symbols van der Waals force 0210 nano-technology |
| Zdroj: | Physical Review Materials. 5 |
| ISSN: | 2475-9953 |
| Popis: | Two-dimensional (2D) transition-metal dichalcogenide superconductors have unique and desirable properties for integration with conventional superconducting circuits. However, fully superconducting contact must be made between the 2D material and three-dimensional (3D) superconductors in order to employ the standard microwave drive and readout of qubits in such circuits. Here, we present a method for creating zero-resistance contacts between 2D NbSe$_2$ and 3D aluminum that behave as Josephson junctions (JJs) with large effective areas compared to 3D-3D JJs. We present a model for the supercurrent flow in a 2D-3D superconducting structure by numerical solution of the Ginzburg-Landau equations and find good agreement with experiment. These results demonstrate a crucial step towards a new generation of hybrid superconducting quantum circuits. Comment: 14 pages, 13 figures |
| Databáze: | OpenAIRE |
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