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DC magnetism of Niobium thin films

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conference contribution
posted on 18.08.2017, 08:29 by Stuart Wilde, O.B. Malyshev, Reza Valizadeh, G.B.G. Stenning, T. Sian, A. Hannah, Boris Chesca
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.

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  • Physics

Published in

18th International Conference on RF Superconductivity

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.

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JACoW

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AM (Accepted Manuscript)

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This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/

Acceptance date

17/07/2017

Publication date

2017

Notes

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/

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en

Location

Lanzhou, China

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