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Substrate-dependent quasiparticle recombination time in superconducting resonators
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Vercruyssen, N., Barends, R., Klapwijk, Teunis Martien, Muhonen, Juha, Meschke, M. and Pekola, Jukka (2011) Substrate-dependent quasiparticle recombination time in superconducting resonators. Applied Physics Letters, Vol.99 (No.6). 062509. doi:10.1063/1.3624463
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Official URL: http://dx.doi.org/10.1063/1.3624463
Abstract
We demonstrate an increased quasiparticle recombination time in superconducting resonators on a SiN(x) membrane, compared to identical resonators on a SiN(x)/Si wafer. An interpretation is given using a thermal model of the membrane. Using an array of tunnel junctions to cool or heat the membrane, we show that the resonators on the membranes are extremely sensitive to small changes of the phonon temperature, which renders them excellent phonon thermometers with a noise level equivalent to 5 mu K/root Hz. The experimental set-up is in principle an ideal platform to study the interplay of quasiparticles and phonon populations in superconductors.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Quasiparticles (Physics), Superconductors, Resonators, Membranes (Technology) | ||||
| Journal or Publication Title: | Applied Physics Letters | ||||
| Publisher: | American Institute of Physics | ||||
| ISSN: | 0003-6951 | ||||
| Official Date: | 8 August 2011 | ||||
| Dates: |
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| Volume: | Vol.99 | ||||
| Number: | No.6 | ||||
| Page Range: | 062509 | ||||
| DOI: | 10.1063/1.3624463 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), European Community (EC) | ||||
| Grant number: | EP/F040784/1 (EPSRC), 228464 (EC) |
Data sourced from Thomson Reuters' Web of Knowledge
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