rf surface impedance of a two-gap superconductor, considering magnesium diboride for accelerator applications

Autor:	Xiao, Binping, Reece, C. E.
Rok vydání:	2018
Předmět:	Condensed Matter - Superconductivity
Zdroj:	Phys. Rev. Accel. Beams 22, 053101 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevAccelBeams.22.053101
Popis:	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. Comment: 7 pages, 1 figure, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1803.08786 Zobrazit plný text záznamu View this record from Arxiv