MEASUREMENT OF SURFACE RESISTANCE OF SUPERCONDUCTING LEAD AT 2.868 GHZ

被引:36
作者
HAHN, H
HALAMA, HJ
FOSTER, EH
机构
[1] Brookhaven National Laboratory, Upton, NY
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D O I
10.1063/1.1656630
中图分类号
O59 [应用物理学];
学科分类号
摘要
The surface resistance of superconducting lead at 2.868 GHz was determined from a measurement of the unloaded Q of a TE011 cavity. The results were compared to the analytical expression for the surface impedance of pure superconductors in the Pippard limit, which was worked out by Abrikosov et al. Adequate agreement was found by writing the reduced surface resistance in the form of r=A rAGK+r0, with r0 being a residual resistance and A a constant. The best fit was obtained for A = 3.0, r 0=2.2×10-5 and the gap parameter Δ(0)=1.97kBTc. © 1968 The American Institute of Physics.
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页码:2606 / &
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