This review focuses on the superconducting properties of MgB 2 that are relevant for power
applications. The reversible mixed state parameters are the most important, since they …

Point-contact spectroscopy was originally developed for the determination of the electron–
phonon spectral function in normal metals. However, in the past 20 years it has become an …

A theoretical model for quasiparticle and Josephson tunneling in multiband superconductors
is developed and applied to MgB 2-based junctions. The gap functions in different bands in …

We present the results of the first directional point-contact spectroscopy experiments in high-
quality M g B 2 single crystals. Because of the directionality of the current injection into the …

Tunneling spectroscopy has been performed on Sr 2 RuO 4 searching for the edge states
peculiar to topological superconductivity. Conductance spectra exhibit broad humps with …

We propose a practical alternative to Eliashberg equations for the ab initio calculation of
superconducting transition temperatures and gap functions. Within the recent density …

The results of first-principles calculations of the electronic structure and the electron-phonon
interaction in MgB 2 are used to study theoretically the temperature dependence and …

Recent discovery of high-temperature superconductivity (T c= 190 K) in sulfur hydrides at
megabar pressures breaks the traditional belief on the T c limit of 40 K for conventional …

Single crystals of Mg 1− x Al x B 2 have been grown at a pressure of 30 kbar using the cubic
anvil technique. Precipitation free crystals with x< 0.1 were obtained as a result of the …

The dynamic conductance across nanoscale junctions consisting of a normal-metal (N) and
a heavy-fermion superconductor (HFS) is measured over a wide temperature range (60 K to …