Proceedings of the 7th International Particle Accelerator Conference
7th International Particle Accelerator Conference (IPAC 2016)
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 . 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 . 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.
Original Publication Citation
Malyshev, O., Gurevich, A., Pattalwar, S., Valizadeh, R., Gurran, L., Pattalwar, N., & Dumbell, K. (2016). First results of magnetic field penetration measurements on multilayer SIS structures. In Proceedings of the 7th International Particle Accelerator Conference, Busan, Korea, May 8-13, 2016 (pp. 2245-2247). http://accelconf.web.cern.ch/AccelConf/ipac2016/papers/wepmb057.pdf
Malyshev, O. B.; Gurran, L.; Valizadeh, R.; Pattalwar, S.; Pattalwar, N.; Dumbell, K. D.; and Gurevich, A., "First Results of Magnetic Field Penetration Measurements of Multilayer SIS Structures" (2016). Physics Faculty Publications. 290.