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RIS citation export for THFUB2: Progress with Nb Hipims Films on 1.3 GHz Cu Cavities

AU  - Burton, M.C.
AU  - Palczewski, A.D.
AU  - Reece, C.E.
AU  - Valente-Feliciano, A-M.
ED  - Michel, Peter
ED  - Arnold, André
ED  - Schaa, Volker RW
TI  - Progress with Nb Hipims Films on 1.3 GHz Cu Cavities
J2  - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019
CY  - Dresden, Germany
T2  - International Conference on RF Superconductivity
T3  - 19
LA  - english
AB  - In recent years, efforts have been invested to leverage the different processes involved in energetic condensation to tailor Nb film growth in sequential steps. The resulting Nb/Cu films display high quality material properties and show promise of high RF performance. The lessons learned are now applied to 1.3 GHz Nb on Cu cavity deposition via high power impulse magnetron sputtering (HiPIMS). RF performance is measured at different temperatures. Particular attention is given to the effect of cooldown and sensitivity to external applied magnetic fields. The results are evaluated in light of the Nb film material and superconducting properties measured with various microscopy and magnetometry techniques in order to better understand the contributing factors to the residual and flux induced surface resistances. This contribution presents the insights gained in exploiting energetic condensation as a path towards RF Q-slope mitigation for Nb/Cu films, correlating film material characteristics with RF performance.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 823
EP  - 827
KW  - cavity
KW  - lattice
KW  - cathode
KW  - superconductivity
DA  - 2019/08
PY  - 2019
SN  - 978-3-95450-211-0
DO  - doi:10.18429/JACoW-SRF2019-THFUB2
UR  - http://jacow.org/srf2019/papers/thfub2.pdf
ER  -