Remote Doping of Scalable Nanowire Branches
| Autor: | Martin Friedl, Wonjong Kim, Kris Cerveny, Lucas Güniat, Mohammad Samani, Nicholas Morgan, Lincoln J. Lauhon, Didem Dede, Dominik M. Zumbühl, Anna Fontcuberta i Morral, J. Segura-Ruiz, Megan O. Hill, Chunyi Huang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Nanowire Physics::Optics molecular-beam epitaxy Bioengineering 02 engineering and technology Epitaxy Topological quantum computer Crystal Condensed Matter::Materials Science Selective area epitaxy General Materials Science selective-area epitaxy spin-orbit interaction passivation business.industry atom-probe tomography Mechanical Engineering Doping silicon General Chemistry weak anti-localization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ingaas/gaas 021001 nanoscience & nanotechnology Condensed Matter Physics high-mobility nanowires Path (graph theory) Scalability single-nanowire ingaas Optoelectronics interdiffusion inas nanowires 0210 nano-technology business quantum-wells |
| Zdroj: | Nano Letters 'Nano Letters ', vol: 20, pages: 3577-3584 (2020) |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Selective-area epitaxy provides a path toward high crystal quality, scalable, complex nanowire networks. These high-quality networks could be used in topological quantum computing as well as in ultrafast photodetection schemes. Control of the carrier density and mean free path in these devices is key for all of these applications. Factors that affect the mean free path include scattering by surfaces, donors, defects, and impurities. Here, we demonstrate how to reduce donor scattering in InGaAs nanowire networks by adopting a remote-doping strategy. Low-temperature magnetotransport measurements indicate weak anti-localization—a signature of strong spin–orbit interaction—across a nanowire Y-junction. This work serves as a blueprint for achieving remotely doped, ultraclean, and scalable nanowire networks for quantum technologies. |
| Databáze: | OpenAIRE |
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