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Title: DC magnetism of Niobium thin films
Authors: Wilde, Stuart
Malyshev, O.B.
Valizadeh, Reza
Stenning, G.B.G.
Sian, T.
Hannah, A.
Chesca, Boris
Issue Date: 2017
Publisher: JACoW
Citation: WILDE, S. ...et al., 2017. DC magnetism of Niobium thin films. Presented at the 18th International Conference on RF Superconductivity, Lanzhou, China, 17-21st July.
Abstract: Niobium thin films were deposited onto a-plane sapphire with varying kinetic energy and varying substrate temperature. There were no consistent trends which related the particle energy or substrate temperature to RRR. The sample which displayed the largest RRR of 229 was then compared to both a thin film deposited with similar conditions onto copper substrate and to bulk niobium. DC magnetometry measurements suggest that the mechanism of flux entry into thin film niobium and bulk niobium may vary due to differences in the volumes of both defects and impurities located within the grains. Results also suggest that magnetic flux may penetrate thin films at small fields due to the sample geometry.
Description: This is an Open Access Article. It is published by JacoW under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/26113
Publisher Link: http://srf2017.csp.escience.cn/dct/page/1
Appears in Collections:Conference Papers (Physics)

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