most citedLow-loss Nb on Si superconducting resonators from a dual-use spintronics deposition chamber and with acid-free post-processing

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quant-ph2026★ 1 cited

Low-loss Nb on Si superconducting resonators from a dual-use spintronics deposition chamber and with acid-free post-processing

Maciej W. Olszewski, Jadrien T. Paustian, Tathagata Banerjee +13

Magnetic impurities are known to degrade superconductivity. For this reason, physical vapor deposition chambers that have previously been used for magnetic materials have generally…

quant-ph2025

Comparison of Nb and Ta Pentoxide Loss Tangents for Superconducting Quantum Devices

D. P. Goronzy, W. W. Mah, P. G. Lim +14

Superconducting transmon qubits are commonly made with thin-film Nb wiring, but recent studies have shown increased performance with Ta wiring. In this work, we compare the resonat…