| 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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Leroy, Jocelyne
CEA Saclay
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 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
- 2023Efficient, Stable, and Solvent‐Free Synthesized Single‐Atom Catalysts: Carbonized Transition Metal‐Doped ZIF‐8 for the Hydrogen Evolution Reaction**citations
- 2023Efficient, Stable, and Solvent-Free Synthesized Single-Atom Catalysts : Carbonized Transition Metal-Doped ZIF-8 for the Hydrogen Evolution Reactioncitations
- 2022Properties of self-oxidized single crystalline perovskite N : BaTiO$_3$ oxynitride epitaxial thin filmscitations
- 2022Properties of self-oxidized single crystalline perovskite N : BaTiO 3 oxynitride epitaxial thin filmscitations
- 2021Nanostructured intermetallic InSb as a high-capacity and high-performance negative electrode for sodium-ion batteriescitations
- 2021Nanostructured intermetallic InSb as a high-capacity and high-performance negative electrode for sodium-ion batteriescitations
- 2021Influence of electrolyte on the electrode/electrolyte interface formation on InSb electrode in Mg-Ion batteriescitations
- 2021Influence of Electrolyte on the Electrode/Electrolyte Interface Formation on InSb Electrode in Mg-Ion Batteriescitations
- 2020Mn 0.7 Fe 2.3 O 4 Nanoplatelets Embedded in BaTiO 3 Perovskite Thin Films for Multifunctional Composite Barrierscitations
- 2020Robust Grafting of Polyionenes: New Potent and Versatile Antimicrobial Surfacescitations
- 2016Inkjet Printing NiO-Based p-Type Dye-Sensitized Solar Cellscitations
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>