Effect of Helium Ion Irradiation on the Tunneling Behavior in Niobium/Aluminum–Aluminum Oxide/Niobium Josephson Junctions

Published in IEEE Transactions on Applied Superconductivity, 2013

Recommended citation: Effect of Helium Ion Irradiation on the Tunneling Behavior in Niobium/Aluminum–Aluminum Oxide/Niobium Josephson Junctions. Tiantian Zhang, Cameron Kopas, Lei Yu, Ray W Carpenter, Makram A Qader, Mengchu Huang, Rakesh K Singh, John Mardinly, Robin Cantor, John M Rowell, Nathan Newman IEEE Transactions on Applied Superconductivity 23 (4), 1101610-1101610 (2014) DOI: 10.1109/TASC.2013.2256358. https://ieeexplore.ieee.org/document/6522170

This paper studies the effect that helium ion irridiation (alpha-particles) has on the layer intermixing and electrical performance of Nb/Al-AlOx/Nb Josephson junctions. My role was to perform irridiation, and measure the extent of mixing using Rutherford backscttering spectroscopy (RBS), as well as simulate expected results using SRIM and TRIM.

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Recommended citation: Effect of Helium Ion Irradiation on the Tunneling Behavior in Niobium/Aluminum–Aluminum Oxide/Niobium Josephson Junctions. Tiantian Zhang, Cameron Kopas, Lei Yu, Ray W Carpenter, Makram A Qader, Mengchu Huang, Rakesh K Singh, John Mardinly, Robin Cantor, John M Rowell, Nathan Newman IEEE Transactions on Applied Superconductivity 23 (4), 1101610-1101610 (2014) DOI: 10.1109/TASC.2013.2256358.