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Persistent URL http://purl.org/net/epubs/work/31973268
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Record Id 31973268
Title First Results of Magnetic Field Penetration Measurements on Multilayer S-I-S Structures
Abstract The performance of superconducting RF cavities made of bulk Nb is limited by a breakdown field of Bp=~200 mT, close to the superheating field for Nb. A potentially promising solution to enhance the breakdown field of the SRF cavities beyond the intrinsic limits of Nb is a multilayer coating suggested in [1]. In the simplest case, such a multilayer may be a superconductor-insulator-superconductor (S-I-S) coating, for example, bulk niobium (S) coated with a thin film of insulator (I) followed by a thin layer of another superconductor (S) which could be e.g. dirty niobium [2]. Here we report the first results of our measurements of field penetration in Nb thin films and Nb-AlN-Nb multilayer samples at 4.2 K using the magnetic field penetration facility designed, built and tested in ASTeC.
Organisation ASTeC , CI , STFC
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Language English (EN)
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Paper In Conference Proceedings In 7th International Particle Accelerator Conference (IPAC'16), Busan, Korea, 8-13 May 2016, (2016): 2245-2247. http://accelconf.…/papers/wepmb057.pdf 2016