| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Maurice, Jean-Luc
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Reducing two-level system dissipations in 3D superconducting Niobium resonators by atomic layer deposition and high temperature heat treatmentcitations
- 2024Reducing two-level systems dissipations in 3D superconducting niobium resonators by atomic layer deposition and high temperature heat treatmentcitations
- 2023Reactive plasma sputtering deposition of polycrystalline GaN thin films on silicon substrates at room temperaturecitations
- 2023Evolution of Cu-In Catalyst Nanoparticles under Hydrogen Plasma Treatment and Silicon Nanowire Growth Conditionscitations
- 2020Hydrogen Plasma-Assisted Growth of Gold Nanowirescitations
- 2019Heteroepitaxial growth of silicon on GaAs via low-temperature plasma-enhanced chemical vapor depositioncitations
- 2018Heteroepitaxial growth of Silicon on GaAs via low temperature plasma-enhanced chemical vapor deposition
- 2016Low temperature plasma enhanced CVD epitaxial growth of silicon on GaAs: a new paradigm for III-V/Si integrationcitations
- 2012Different mechanisms of graphene wall nucleation on Fe and Ni particles
- 2011Vertically oriented nickel nanorod/carbon nanofiber core/shell structures synthesized by plasma-enhanced chemical vapor depositioncitations
- 2011Iron catalysts for the growth of carbon nanofibers : Fe, Fe_{3}C$ or both?
- 2011Synthesis of few-layered graphene by ion implantation of carbon in nickel thin filmscitations
- 2010Iron catalyst for the growth of carbon nanofibers: Fe, Fe3C or both?citations
- 2010Nickel catalyst faceting in plasma-enhanced direct current chemical vapor deposition of carbon nanofibers
- 2006Interfaces in {100} epitaxial heterostructures of perovskite oxidescitations
Places of action
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article
Reducing two-level systems dissipations in 3D superconducting niobium resonators by atomic layer deposition and high temperature heat treatment
Abstract
<jats:p>Superconducting qubits have arisen as a leading technology platform for quantum computing, which is on the verge of revolutionizing the world's calculation capacities. Nonetheless, the fabrication of computationally reliable qubit circuits requires increasing the quantum coherence lifetimes, which are predominantly limited by the dissipations of two-level system defects present in the thin superconducting film and the adjacent dielectric regions. In this paper, we demonstrate the reduction of two-level system losses in three-dimensional superconducting radio frequency niobium resonators by atomic layer deposition of a 10 nm aluminum oxide Al2O3 thin films, followed by a high vacuum heat treatment at 650 °C for few hours. By probing the effect of several heat treatments on Al2O3-coated niobium samples by x-ray photoelectron spectroscopy plus scanning and conventional high resolution transmission electron microscopy coupled with electron energy loss spectroscopy and energy dispersive spectroscopy, we witness a dissolution of niobium native oxides and the modification of the Al2O3-Nb interface, which correlates with the enhancement of the quality factor at low fields of two 1.3 GHz niobium cavities coated with 10 nm of Al2O3.</jats:p>