Superconducting Microwave Cavity Made of Bulk MgB2

Details Superconducting Microwave Cavity Made of Bulk MgB2 Superconducting Microwave Cavity Made of Bulk MgB2

2006-12-06

arxiv.org/abs/cond-mat/0612159v2

Supercond. Sci. Technol. 20 (2007) L16-L19

Physics

Condensed Matter

Superconductivity

7 pages, 2 embedded figures, accepted for publication in Supercond. Sci. Technol

Scientific paper

10.1088/0953-2048/20/4/L03

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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