33 citations · 52 across the 2 of their papers we have counts for
2 papers
physics.app-ph2022★ 33 cited
Nitrogen Plasma Passivated Niobium Resonators for Superconducting Quantum Circuits
K. Zheng, D. Kowsari, N. J. Thobaben +6
Microwave loss in niobium metallic structures used for superconducting quantum circuits is limited by a native surface oxide layer formed over a timescale of minutes when exposed t…
cond-mat.supr-con2021★ 19 cited
Fabrication and surface treatment of electron-beam evaporated niobium for low-loss coplanar waveguide resonators
D. Kowsari, K. Zheng, J. T. Monroe +6
We characterize low-loss electron-beam evaporated niobium thin films deposited under ultra-high vacuum conditions. Slow deposition yields films with a high superconducting transiti…