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

doi:10.1063/1.1379366

paper

Microwave properties of superconducting $M g B_{2}$

arXiv:cond-mat/0103422 · doi:10.1063/1.1379366

Abstract

Measurements of the $10 G H z$ microwave surface resistance of dense $M g B_{2}$ 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 $R_{s} (20 K)$ of the wire is an order of magnitude lower than that of polycrystal $Y B a_{2} C u_{3} O_{6.95}$ and matches with single crystal $Y B a_{2} C u_{3} O_{6.95} .$ The results show promise for the use of $M g B_{2}$ in microwave applications.

3 pages, 3 figures

Microwave properties of superconducting MgB2​

Abstract

Microwave properties of superconducting $M g B_{2}$