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Berlin 2024 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 16: Superconducting Qubits (joint session QI/TT)

QI 16.4: Vortrag

Mittwoch, 20. März 2024, 10:15–10:30, HFT-FT 131

All-nitride superconducting devices for quantum computing — •Thomas Smart, Roudy Hanna, Michael Schleenvoigt, Albert Hertel, Abdur Rehman Jalil, Detlev Grützmacher, and Peter Schüffelgen — Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse, Jülich, 52425, Germany

The ongoing search for better superconducting devices for quantum computing has led to many proposals on how these devices can be improved to yield longer coherence times. Nitride based superconducting devices have been proposed as a potential platform for the next generation of quantum computing due to their stability and desirable superconducting properties. Here, we present the fabrication of all-nitride superconducting devices via molecular beam epitaxy on c-plane sapphire. These devices exhibit high crystalline quality and desirable superconducting properties. We explore the advantages of these devices compared to commonly used alternatives and how the use of reconstructed sapphire yields ideal growth qualities.

Keywords: Josephson Junctions; Nitrides; Quantum; Molecular Beam Epitaxy; Superconductivity

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