Thesis defence A. Proutski: nanowires
28 March 2019 10:00 - Location: Aula, TU Delft - By: webredactie
Energy structure of hybrid semiconductor-superconductor nanowire based devices. Promotor: Prof.dr.ir. L.P. Kouwenhoven (TNW).
Recent development in material science has made it possible to fabricate novel nano-sized architectures that possess properties making them favourable for implementation in fields such as quantum computing. Hybrid structure consisting of semiconducting nanowires and superconducting films are a heavily studied platform in the realisation of topological qubits. However before their successful implementation, a comprehensive understanding of the underlying structure is necessary. Here we develop an elaborate on-chip circuit that enables energetic study of two key architectures; the nanowire based Josephson junction and a nanowire based Cooper-pair transistor. The circuit relies on using a conventional Josephson tunnel junction that acts as both a source and a detector of high-frequency radiation to study its surrounding electromagnetic environment. By carefully structuring this environment and embedding the system of interest, a broadband study its energetic landscape is revealed.
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