6 papers
Long- to short-junction crossover and field-reentrant critical current in Al/Ag-nanowires/Al Josephson junctions
A. Murani, S. Sengupta, A. Kasumov +5
We have probed the superconducting proximity effect through long high-quality monocrystalline Ag nanowires, by realizing Josephson junctions of different lengths, with different su…
Absence of a dissipative quantum phase transition in Josephson junctions
Anil Murani, Nicolas Bourlet, Hélène le Sueur +7
Half a century after its discovery, the Josephson junction has become the most important nonlinear quantum electronic component at our disposal. It has helped reshape the SI system…
Microscopic charged fluctuators as a limit to the coherence of disordered superconductor devices
Hélène le Sueur, Artis Svilans, Nicolas Bourlet +4
By performing experiments with thin-film resonators of NbSi, we elucidate a decoherence mechanism at work in disordered superconductors. This decoherence is caused by charged Two L…
Gate-tunable superconductivity at SrTiO3 surface realized by Al layer evaporation
Shamashis Sengupta, Emilie Tisserond, Florence Linez +8
Electronic properties of low dimensional superconductors are determined by many-body-effects. This physics has been studied traditionally with superconducting thin films, and in re…
Microwave signature of robust topological Andreev-level crossings in superconducting proximitized crystalline Bi nanowires
A. Murani, B. Dassonneville, A. Kasumov +5
Demonstrating the topological protection of Andreev states in Josephson junctions is an experimental challenge. In particular the telltale periodicity expected for the current…
Higher-Order Topology in Bismuth
Frank Schindler, Zhijun Wang, Maia G. Vergniory +12
The mathematical field of topology has become a framework to describe the low-energy electronic structure of crystalline solids. A typical feature of a bulk insulating three-dimens…