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arXiv · 2412.14958

Study of NbN as superconducting material for the usage in superconducting radio frequency cavities

Kristof Schmieden·Tim Schneemann·Matthias Schott·Malavika Unni·Hendrik Bekker·Arne Wickenbrock·Dmitry Budker
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Abstract

A new axion-haloscope is setup at the Johannes Gutenberg university of Mainz, named the Supax (a SUPerconducting AXion search) experiment. This setup is used to characterize the behaviour of a NbN coated superconducting cavity in a 2.5T strong magnetic field, at a resonance frequency of 8.4GHz. We observe an increasing surface resistance with increasing magnetic field, leading to a decreasing quality factor. The behaviour is similar to that of previously studied cavities using Nb3Tn.

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Kristof Schmieden, Tim Schneemann, Matthias Schott, Malavika Unni, Hendrik Bekker, Arne Wickenbrock, Dmitry Budker. 2024-12-19. Study of NbN as superconducting material for the usage in superconducting radio frequency cavities. https://arxiv.org/abs/2412.14958

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