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Microwave properties of superconducting $MgB_{2}$

N. Hakim·P. V. Parimi·C. Kusko·S. Sridhar·P. C. Canfield·S. L. Bud'ko·D. K. Finnemore
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Abstract

Measurements of the $10GHz$ microwave surface resistance of dense $MgB_{2}$ wire and pellet are reported. Significant improvements are observed in the wire with reduction of porosity. The data lie substantially above the theoretical estimates for a pure BCS s-wave superconductor . However the $R_{s}(20K)$ of the wire is an order of magnitude lower than that of polycrystal $YBa_{2}Cu_{3}O_{6.95}$ and matches with single crystal $YBa_{2}Cu_{3}O_{6.95}.$The results show promise for the use of $MgB_{2}$ in microwave applications.

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N. Hakim, P. V. Parimi, C. Kusko, S. Sridhar, P. C. Canfield, S. L. Bud'ko, D. K. Finnemore. 2001-03-20. Microwave properties of superconducting $MgB_{2}$. https://doi.org/10.1063/1.1379366

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