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Sujet de stage / Master 2 Internship

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Realization of quantum circuits by reactive sputtering and etching of NbTiN

Contact: VION Denis, , denis.vion@cea.fr, +33 1 69 08 73 41/55 29
Summary:
The goal is to develop a fabrication process of microwave resonators with high Tc, high quality factor, robust against magnetic field, et with no stress in the substrate at low temperature.
Possibility of continuation in PhD: Non
Deadline for application:16/04/2018

Full description:
The Quantronics group of CEA-Saclay makes quantum superconducting circuits for quantum information processing and to manipulate and detect electronic and nuclear spins implanted in a cristal. Reactive sputtering and etching of niobium titanium nitride (NbTiN) is an appropriate choice for these circuits, given the relatively high Tc of the material, its non too high kinetic inductance, its robustness against static mgnetic field, and the possibility to cancel stress below the circuit at low temperature.
We thus recruit an end-of-course intern with knowledge on materials and thin film fabrication and characterization.
Technics/methods used during the internship:
Reactive sputtering, Reactive ion etching, Chemical etching, 4 probe measurements, Tc(B) measurements, quality factor measurement using vectorial network analyzers, etc

Laboratory
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