Fabrication and characterization of van der Waals Josephson junctions

Stacking of two-dimensional materials has given us the ability to create innumerable hybrid electronic systems, one such system being Josephson junctions (JJs). A major bottleneck in inducing proximity based superconductivity in 2-d materials is poor interface quality leading to low transparency. I will discuss our recent efforts in creating van der Waals JJs with 2-d superconductors like NbSe2 having pristine interfaces. Low temperature characterization of these JJs in the presence of magnetic fields will also be discussed. These junctions are a starting point for exploring unconventional Josephson physics and topological superconductivity.