First βNMR results on SRF samples at TRIUMF
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JACoW Publishing
Abstract
The βNMR (β-detected nuclear magnetic resonance) facility at TRIUMF offers the possibility of depth-resolved probing of the Meissner state over the first 100 nm below a sample surface. The measurement can give the attenuation of the applied magnetic field, as a function of depth. The technique can be especially important when probing layered systems like the dirty/clean S-S (superconductor-superconductor) bilayer and S-I-S (Superconductor-Insulator-Superconductor) structures. The TRIUMF SRF (Superconducting RF) group has recently completed first measurements at beta-NMR on Nb samples with various treatments. The results and method will be reported. Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license.
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Thoeng, E., McFadden, R. M. L., Kolb, P., Junginger, T., Asaduzzaman, M., Laxdal, R. E., Karner, V. L., Fujimoto, D., Chatzichristos, Ticknor, J. O., Adelman, J. R., Dehn, M. H., Levy, C. D. P., Li, R., McKenzie, I., Stachura, M., Dunsiger, S. R., Morris, G. D., McFarlane, W. A., Kiefl, R. F., & Cortie, D. L. (2021). First βNMR results on SRF samples at TRIUMF. Paper presented at the 20th International Conference on RF Superconductivity, SRF2021, Michigan State University, East Lansing, Michigan, USA, 27 June - 2 July 2021. In K. Saito, T. Xu, N. Sakamoto, A. Lesage & V.R. W. Schaa (Eds), Proceedings, 20th International Conference on RF Superconductivity, SRF2021, (pp.365-371) . Geneva, Switzerland: JACoW. doi:10.18429/JACoW-SRF2021-TUOFDV08