8-10 October 2018
INFN - Laboratori Nazionali di Legnaro
Europe/Rome timezone

RF characterization of thin films at Cornell

9 Oct 2018, 10:15
Villi Room (INFN - Laboratori Nazionali di Legnaro)

Villi Room

INFN - Laboratori Nazionali di Legnaro

Viale dell'Università 2, Legnaro (Padova) - Italy
Other superconducting materials beyond niobium Other SC Materials beyond Niobium


Mr Thomas Oseroff (Cornell University)


A TE mode niobium sample host cavity was used to characterize the RF performance of large 5” diameter thin film samples at 4 GHz. Exciting results were obtained from industry partner Ultramet’s CVD Nb3Sn grown on a copper substrate. These results indicate that slight alterations to the deposition process and use of higher purity precursors could lead to high-performance Nb3Sn coatings on copper, which would be a breakthrough accomplishment. In addition, encouraging RF measurements for bi-layer ALD NbN-Nb and ALD multilayer NbN-AlN-Nb, obtained from industry partner Veeco-CNT, were obtained. These initial results demonstrate the potential of ALD and CVD for use in SRF cavities.

Primary author

Mr Thomas Oseroff (Cornell University)


Prof. Matthias Liepe (Cornell University)

Presentation Materials

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