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Properties of superconducting planar resonators at millikelvin temperatures.

Lindstrom, T; Healey, J E*; Colclough, M S*; Muirhead, C M*; Tzalenchuk, A Ya (2009) Properties of superconducting planar resonators at millikelvin temperatures. Phys. Rev. B, 80 (13). 132501

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Abstract

Planar superconducting resonators are now being increasingly used at mK temperatures in a number of novel applications. However, they are also interesting devices in their own right. We have experimentally investigated three types of niobium resonators fabricated on sapphire and SiO2/Si substrates. They all exhibit a non-trivial temperature dependence of the centre frequency and quality factor. Our results are consistent with the idea that the resonators are affected by the presence of two-level fluctuators in the substrate.

Item Type: Article
Keywords: superconductor, resonators, fluctuators
Subjects: Quantum Phenomena
Quantum Phenomena > Quantum Information Processing and Communication
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4513

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