Autore/i: | Marcelli A. et al. | ||||
Titolo: | Nb superconductive thin film coating on flat Cu disks for high gradient applications | ||||
Numero: | INFN-19-15/LNF | ||||
Data: | 19-07-2019 | ||||
PACS: | |||||
Pubblicato su: | |||||
PDF file: | INFN-19-15-LNF.pdf | ||||
URL: | |||||
Abstract: | In this work we present the characterization of Nb superconductive films deposed on copper substrates with two different techniques: the PVD magnetron sputtering and the Pulsed Laser Ablation. In the first method Nb films ~3 μm thick were deposited with an average roughness of 160 nm. The superconductivity properties of these films were also determined with a 4-probe resistivity measurement. Data show a superconducting transition at 9.6Κ as expected from Nb films. With the second technique thick Nb films were deposited on copper substrates using the Pulsed Laser Ablation. In this case the Rutherford Backscattering was used to determine the thickness and the chemical state of these films that show different degrees of oxidation. |
Per commenti, reclami, domande, suggerimenti scrivere a: sis.library@lnf.infn.it