Magnetic field tuning of coplanar waveguide resonators

Research output: Contribution to journalArticle


Colleges, School and Institutes


We describe measurements on microwave coplanar resonators designed for quantum bit experiments. Resonators have been patterned onto sapphire and silicon substrates, and quality factors in excess of a million have been observed. The resonant frequency shows a high sensitivity to magnetic field applied perpendicular to the plane of the film, with a quadratic dependence for the fundamental, second, and third harmonics. Frequency shift of hundreds of linewidths can be obtained with no change in the quality factor. (c) 2008 American Institute of Physics.


Original languageEnglish
Pages (from-to)043513
Number of pages1
JournalApplied Physics Letters
Issue number4
Publication statusPublished - 1 Jul 2008