Electronic Resource
Springer
The European physical journal
271 (1974), S. 265-268
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Measurements ofdc-resistance, surface resistance at 9.6 GHz and x-ray diffraction were made on Nb3Sn layers having thicknesses between 4 and 7 μ. Samples were prepared by condensing tin on niobium foil which was then annealed at high temperature. This process was repeated, in some cases as many as twenty times. The best samples showed steep transition curves close to 18.2 K. X-ray measurements indicated a high degree of stoechiometry. The surface resistance decreased from 5 · 10−2Ω atT c to a residual value of 3 · 10−4 Ω. This relatively high value can be due to minor deviations from stoechiometry or possibly to similar mechanisms as proposed for pure elements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01677933
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