Measured frequency dependence of the surface resistance of superconducting niobium
- 1 November 1974
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 45 (11), 5023-5026
- https://doi.org/10.1063/1.1663177
Abstract
The surface resistance of a superconducting niobium cavity oscillating in the TE11n modes has been measured over a frequency range from 1.7 to 7.8 GHz, and a frequency dependence proportional to f2 ± 0.1 has been found. The result differs from the f1.7 dependence predicted by the approximate microscopic theory. A possible explanation for the observed anomaly is given by smearing of the density‐of‐states maximum due to inhomogeneities in the superconductor.Keywords
This publication has 14 references indexed in Scilit:
- On surface resistance of superconductorsThe European Physical Journal A, 1974
- Determining accurate superconducting tunneling energy gaps: Anisotropy in single-crystal NbJournal of Applied Physics, 1973
- Influence of solute oxygen and nitrogen on superconducting niobium cavitiesJournal of Applied Physics, 1973
- Interaction of Adsorbed Molecular Oxygen with Thin Superconducting Aluminum FilmsPhysica Status Solidi (b), 1972
- Luminescence of O−2, Mn2+ and Fe3+ in sodalitePhysics Letters A, 1971
- Comparison between measured and calculatedRF losses in the superconducting stateThe European Physical Journal A, 1970
- Intrinsic type-2 superconductivity in pure niobiumCryogenics, 1968
- Theory of Electromagnetic Properties of Superconducting and Normal Systems. IPhysical Review B, 1967
- Theory of Electromagnetic Properties of Strong-Coupling and Impure Superconductors. IIPhysical Review B, 1967
- The variation with frequency of the resistance of superconducting tin and indiumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958