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Condensed Matter > Superconductivity
Title: Superconducting nitridized-aluminum thin films
(Submitted on 11 Aug 2023 (v1), last revised 8 Apr 2024 (this version, v2))
Abstract: We report the direct observation of superconductivity in nitridized-aluminum thin films. The films are produced by sputtering deposition of aluminum in a controlled mixture of nitrogen diluted in argon. The concentration of applied nitrogen directly determines the properties of the superconducting thin films. We observe samples displaying critical temperatures up to 3.38$\pm$0.01K and resilience to in-plane magnetic fields well above 1T, with good reproducibility of the results. This work represents an unambiguous demonstration of tunable superconductivity in aluminum-based nitridized thin films. Our results put forward nitridized aluminum as a promising material to be employed in superconducting quantum circuits for quantum technology applications.
Submission history
From: Alba Torras Coloma [view email][v1] Fri, 11 Aug 2023 17:19:09 GMT (2200kb,D)
[v2] Mon, 8 Apr 2024 14:42:36 GMT (6866kb)
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