Descripción del proyecto DEENESFRITPL El deleite de una celestina fortalece el campo de la optoelectrónica superconductora Los semiconductores, materiales que «semiconducen» la electricidad han revolucionado nuestras vidas con aplicaciones en todo tipo de productos, desde la electrónica de consumo y las celdas fotovoltaicas hasta los láseres. La integración de los semiconductores con los superconductores abre la puerta a posibilidades ilimitadas de funcionalidad de los dispositivos y a nuevas aplicaciones, como la comunicación, la codificación y el procesamiento cuánticos. Sin embargo, ajustar y optimizar la interfaz física real entre los dos tipos de materiales ha sido un reto debido a la falta de control. El equipo del proyecto SuperCONtacts, respaldado por las Acciones Marie Skłodowska-Curie, pretende superar estas limitaciones con una nueva técnica de fabricación que conducirá a la creación de interfaces superconductor-semiconductor atómicamente afiladas. Mostrar el objetivo del proyecto Ocultar el objetivo del proyecto Objetivo The emerging field of superconducting optoelectronics has the potential to impact future quantum processing, communication and encryption. Hybrid light-emitting diodes exhibit emission of entangled photons enhanced by the superconducting state, while novel superconductor (Su) based lasers and quantum light sources have been proposed. Despite the amount of research done in semiconductor (Se) p-n physics and superconductivity, the practical integration between these two field of research is poor mainly due to the weak control of high quality Se/Su interfaces. This project proposes to overcome these limitations with a new fabrication technique, based on the metallic diffusion of metals in Se nanowires (NWs), for the realization of atomically sharp Su/Se interfaces with an epitaxial relationship.Starting from a material search I will then investigate the Al (Tc~1K) diffusion into n-doped InAs NWs as well as V and Nb (all Tc>5 K) diffusion into InAs, Si, Ge and GAs NWs. The band structures and resulting contact types (Schottky or Ohmic) of the different material systems will be studied numerically and tested at cryogenic temperatures to find the best material combination. Doping of the nanowires will be tuned to demonstrate superconducting correlations in both p- and n-doped NWs, an essential step for the realization of superconducting diodes. Diffusion through in-situ (S)TEM heating experiments will allow me to control the Su/Se/Su junctions up to the ultimate limit of few nanometers. These ultra-short JJs will allow to enhance the superconducting correlations. Ballistic transport will be probed down to ultra-low temperatures (~10 mK). and the quantification of the mean free path and the quality of the interfaces will take place. By embedding these ultra-short JJs in a superconducting quantum interference device I will be able to control the intensity supercurrent as well as achieving ultimate magnetic-sensitivity ready for novel technological applications. Ámbito científico natural sciencesphysical scienceselectromagnetism and electronicsoptoelectronicsnatural sciencesphysical scienceselectromagnetism and electronicssemiconductivitynatural sciencesphysical sciencesopticslaser physicsnatural sciencesphysical scienceselectromagnetism and electronicssuperconductivitynatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Palabras clave solid state diffusion Cooper pair injection Josephson junction quantum dot Programa(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Tema(s) MSCA-IF-2020 - Individual Fellowships Convocatoria de propuestas H2020-MSCA-IF-2020 Consulte otros proyectos de esta convocatoria Régimen de financiación MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF) Coordinador CONSIGLIO NAZIONALE DELLE RICERCHE Aportación neta de la UEn € 171 473,28 Dirección PIAZZALE ALDO MORO 7 00185 Roma Italia Ver en el mapa Región Centro (IT) Lazio Roma Tipo de actividad Research Organisations Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 171 473,28
