Document Type
Conference Paper
Publication Date
2020
DOI
10.1088/1757-899x/756/1/012014
Publication Title
IOP Conference Series: Materials Science and Engineering
Volume
756
Pages
1-8
Conference Name
International Cryogenic Materials Conference (ICMC) 2019, 21-25 July 2019, Hartford, Connecticut
Abstract
Superconducting Nb3Sn films can be synthesized by controlling the atomic concentration of Sn. Multilayer sequential sputtering of Nb and Sn thin films followed by high temperature annealing is considered as a method to fabricate Nb3Sn films, where the Sn composition of the deposited films can be controlled by the thickness of alternating Nb and Sn layers. We report on the structural, morphological and superconducting properties of Nb3Sn films fabricated by multilayer sequential sputtering of Nb and Sn films on sapphire substrates followed by annealing at 950 °C for 3 h. We have investigated the effect of Nb and Sn layer thickness and Nb:Sn ratio on the properties of the Nb3Sn films. The crystal structure, surface morphology, surface topography, and film composition were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy dispersive X-ray spectroscopy (EDS). The results showed Sn loss from the surface due to evaporation during annealing. Superconducting Nb3Sn films of critical temperature up to 17.93 K were fabricated.
Original Publication Citation
Sayeed, M. N., Pudasaini, U., Reece, C. E., Eremeev, G. V., & Elsayed-Ali, H. E. (2020). Effect of layer thickness on structural, morphological and superconducting properties of Nb3Sn films fabricated by multilayer sequential sputtering. IOP Conference Series: Materials Science and Engineering, 756, 1-8, Article 012014. https://doi.org/10.1088/1757-899x/756/1/012014
Repository Citation
Sayeed, M. N.; Pudasaini, U.; Reece, C. E.; Eremeev, G. V.; and Elsayed-Ali, H. E., "Effect of Layer Thickness on Structural, Morphological and Superconducting Properties of Nb3Sn Films Fabricated by Multilayer Sequential Sputtering" (2020). Electrical & Computer Engineering Faculty Publications. 280.
https://digitalcommons.odu.edu/ece_fac_pubs/280
Comments
Published under a Creative Commons Attribution 3.0 Licence.
Publisher's version available at: http://dx.doi.org/10.1088/1757-899x/756/1/012014