rf surface impedance of a two-gap superconductor, considering magnesium diboride for accelerator applications
Superconductivity
2019-05-15 v1
Abstract
In this paper, we apply the two-band extension [1] of BCS theory [2] into the Mattis-Bardeen theory [3] to obtain the surface impedance of a two-band superconductor, and apply it to magnesium diboride (MgB2) for radiofrequency (RF) superconductivity applications. The numerical results for MgB2 are in good agreement with the previously published experimental results [4]. The surface impedance properties are clearly dominated by the smaller gap, significantly limiting utility in the 10-20 K regime that might otherwise have been attractive.
Keywords
Cite
@article{arxiv.1803.08786,
title = {rf surface impedance of a two-gap superconductor, considering magnesium diboride for accelerator applications},
author = {Binping Xiao and C. E. Reece},
journal= {arXiv preprint arXiv:1803.08786},
year = {2019}
}
Comments
7 pages, 1 figure, 1 table