Fermi-arc supercurrent oscillations in Dirac semimetal Josephson junctions

Fluxon bunching in supercurrent-coupled Josephson junctions.

4p-periodic Josephson supercurrent in HgTe-based topological Josephson junctions

The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological insulator. In such a material, an unconventional induced p...

4π-periodic Josephson supercurrent in HgTe-based topological Josephson junctions

The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological insulator. In such a material, an unconventional induced p...

Anomalous supercurrent from Majorana states in topological insulator Josephson junctions

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Evidence for Supercurrent Quantization in Interfacial Josephson Junctions

We observe a series of discontinuities in the above gap current-voltage characteristics of highly transmissive NbySi superconductor-semiconductor interfaces. The bias at which each switch occurs decreases in quantized steps as a function of temperature and magnetic field. The observed step size is the same for both dependencies. We propose that the steps correspond to supercurrent quantization ...