Double Nanowires for Hybrid Quantum Devices
| Autor: | Daniel Ross, Jesper Nygård, Mikelis Marnauza, Szabolcs Csonka, Thomas Kanne, Dags Olsteins, Juan Carlos Estrada Saldaña, Kasper Grove-Rasmussen, Sara Lorić, Rasmus D. Schlosser, Alexandros Vekris |
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| Rok vydání: | 2021 |
| Předmět: |
Coupling
Superconductivity Materials science business.industry Nanowire Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Biomaterials Core (optical fiber) Condensed Matter::Materials Science Semiconductor Condensed Matter::Superconductivity Electrochemistry Optoelectronics business Quantum Layer (electronics) Molecular beam epitaxy |
| Zdroj: | Advanced Functional Materials. 32:2107926 |
| ISSN: | 1616-3028 1616-301X |
| Popis: | Parallel one-dimensional semiconductor channels connected by a superconducting strip constitute the core platform in several recent quantum device proposals that rely e.g. on Andreev processes or topological effects. In order to realize these proposals, the actual material systems must have high crystalline purity and the coupling between the different elements should be controllable in terms of their interfaces and geometry. We present a strategy for synthesizing double InAs nanowires by the vapor-liquid-solid mechanism using III-V molecular beam epitaxy. A superconducting layer is deposited onto nanowires without breaking vacuum, ensuring pristine interfaces between the superconductor and the two semiconductor nanowires. The method allows for a high yield of merged as well as separate parallel nanowires, with full or half-shell superconductor coatings. We demonstrate their utility in complex quantum devices by electron transport measurements. |
| Databáze: | OpenAIRE |
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