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Superconducting Microwave Cavity Made of Bulk MgB2

G. Giunchi·A. Agliolo Gallitto·G. Bonsignore·M. Bonura·M. Li Vigni
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Abstract

We report the successful manufacture and characterization of a microwave resonant cylindrical cavity made of bulk MgB2 superconductor (Tc = 38.5 K), which has been produced by the Reactive Liquid Mg Infiltration technique. The quality factor of the cavity for the TE011 mode, resonating at 9.79 GHz, has been measured as a function of the temperature. At T = 4.2 K, the unloaded quality factor is 2.2x10^5; it remains of the order of 10^5 up to T ~ 30 K. We discuss the potential performance improvements of microwave cavities built from bulk MgB2 materials produced by reactive liquid Mg infiltration.

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G. Giunchi, A. Agliolo Gallitto, G. Bonsignore, M. Bonura, M. Li Vigni. 2007-02-16. Superconducting Microwave Cavity Made of Bulk MgB2. https://doi.org/10.1088/0953-2048%2F20%2F4%2Fl03

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