2 papers
physics.app-ph2024
Investigation of the deposition of -tantalum (110) films on a-plane sapphire substrate by molecular beam epitaxy for superconducting circuit
Haolin Jia, Boyi Zhou, Tao Wang +6
Polycrystalline α-tantalum (110) films deposited on c-plane sapphire substrate by sputtering are used in superconducting qubits nowadays. However, these films always occasionally…
cond-mat.mtrl-sci2024
Stable and low loss oxide layer on α-Ta (110) film for superconducting qubits
Zengqian Ding, Boyi zhou, Tao Wang +5
The presence of amorphous oxide layers can significantly affect the coherent time of superconducting qubits due to their high dielectric loss. Typically, the surface oxides of supe…