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

RF characterization of thin films at Cornell

9 Oct 2018, 10:15
25m
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

Speaker

Mr Thomas Oseroff (Cornell University)

Description

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)

Co-author

Prof. Matthias Liepe (Cornell University)

Presentation Materials

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