Abstract

The realization and characterization of interface superconductivity, i.e. of two-dimensional (2D) superconducting phases in various different systems, constitute a topic of significant current interest [1–10]. In addition to the fundamental interest in superconducting transitions in reduced dimensions, this is motivated by the high degree of gate tunability of the electronic properties [2, 3, 5, 7–10], allowing to gradually change the carrier concentration. In addition, the promising role played by 2D superconductors in the search for topological Majorana modes and related applications [11] has attracted significant attention.