Document Type

Conference Paper

Publication Date




Publication Title

Proceedings of the 21st International Conference on RF Superconductivity (SRF 2023)



Conference Name

21st International Conference on RF Superconductivity, June 25-30, 2023, Grand Rapids, Michigan


We report measurements of the dc field onset Bp of magnetic flux penetration through NbTiN-AlN coating on bulk niobium using the Hall probe experimental setup. The measurements of Bp reveal the multilayer shielding effect on bulk niobium under high magnetic fields at cryogenic temperatures. We observed a significant enhancement in Bp for the NbTiN-AlN coated Nb samples as compared to bare Nb samples. The observed dependence of Bp on the coating thickness is consistent with theoretical predictions.


© 2023 The Authors.

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Original Publication Citation

Senevirathne, I. H., Beverstock, D. R., Valente-Feliciano, A.-M., Gurevich, A. V., Delayen, J. R., & Beverstock, D. R. (2023) Investigation of the multilayer shielding effect through NbTiN-AIN coated bulk niobium. In K. Saito, T. Xu, N. Sakamoto, V.R.W. Schaa, & P. Thomas (Eds.), Proceedings of the 21st International Conference on RF Superconductivity (pp. 306-310). JACoW.


0000-0003-0126-8335 (Senevirathne), 0000-0003-0759-8941 (Gurevich)