Print Email Facebook Twitter Quasiparticle relaxation in high Q superconducting resonators Title Quasiparticle relaxation in high Q superconducting resonators Author Barends, R. Van Vliet, S. Baselmans, J.J.A. Yates, S.J.C. Gao, J.R. Klapwijk, T.M. Faculty Applied Sciences Department Kavli Institute of Nanoscience Date 2009-12-31 Abstract We present measurements of the quasiparticle relaxation time in Ta superconducting films shaped as planar resonators using the response of the complex conductivity to photon flux. These films have been implanted with magnetic (Mn) as well as non-magnetic atoms (Al). We find a significant decrease of the relaxation time with increasing impurity concentration for both cases, observing a reduction of the low temperature relaxation time, from 25 µs to 10 µs when implanting 100 ppm Mn. This indicates that impurities enhance quasiparticle relaxation in superconductors, regardless of their magnetic moment. To reference this document use: http://resolver.tudelft.nl/uuid:6969383a-dad4-4d38-90ff-b4fb86aa668e DOI https://doi.org/10.1088/1742-6596/150/5/052016 Publisher Institute of Physics ISSN 1742-6596 Source Journal of physics. Conference series, 150 Part of collection Institutional Repository Document type conference paper Rights (c)2009 Barends, R.; Van Vliet, S.; Baselmans, J.J.A.; Yates, S.J.C.; Gao, J.R.; Klapwijk, T.M.; Institute of Physics Files PDF barends.pdf 457.2 KB Close viewer /islandora/object/uuid:6969383a-dad4-4d38-90ff-b4fb86aa668e/datastream/OBJ/view