Using remarkably simple experimental techniques it is possible to gently break a metallic
contact and thus form conducting nanowires. During the last stages of the pulling a neck …

The observation of vortices in superconductors was a major breakthrough in developing the
conceptual background for superconducting applications. Each vortex carries a flux …

We report on high quality local tunnel spectroscopy measurements in superconductors
using in-situ fabricated superconducting tips as counterelectrode. The experiments were …

We describe a scanning tunneling microscope (STM) that operates at magnetic fields up to
22 T and temperatures down to 80 mK. We discuss the design of the STM head, with an …

The properties of nanoscopic superconducting structures fabricated with a scanning
tunnelling microscope are reviewed, with emphasis on the effects of high magnetic fields …

We revisit the problem of point-contact tunnel junctions involving one-dimensional
superconductors and present a simple scheme for computing the full current-voltage …

We present a comprehensive theoretical analysis of the dc transport properties of
superconducting point contacts. We determine the full-counting statistics for these junctions …

We present a numerical study of the emergence of Majorana and Andreev bound states in a
system composed of two quantum dots, one of which is coupled to a conventional …

Superconductors with an odd number of bands crossing the Fermi energy have topologically
protected Andreev states at interfaces, including Majorana states in one-dimensional …

We present high-resolution tunneling spectroscopy data at very low temperatures on
superconducting nanostructures of lead built with scanning tunnel microscope. By applying …