This review paper illustrates the main normal and superconducting state properties of
magnesium diboride, a material known since the early 1950s but only recently discovered to …

This review is an up-to-date snapshot of the current situation in studies of materials with
competing electron spectrum instabilities, namely Cooper pairing, on the one hand, and …

Quasiclassic Usadel equations for two-band superconductors in the dirty limit are derived
with the account of both intraband and interband scattering by nonmagnetic impurities. From …

The discovery of superconductivity at 260 K in hydrogen-rich compounds like LaH10 re-
invigorated the quest for room temperature superconductivity. Here, we report the …

A large number of experimental facts and theoretical arguments favor a two-gap model for
superconductivity in M g B 2. However, this model predicts strong suppression of the critical …

We review the current situation in the theory of superconducting and transport properties of
MgB2. First principle calculations of the electronic structure and electron–phonon coupling …

The anisotropy γ of the superconducting state of high quality single crystals of MgB 2 was
determined, using torque magnetometry with two different methods. The anisotropy of the …

An overview of the theory of the upper critical field in dirty two-gap superconductors, with a
particular emphasis on MgB2 is given. We focus here on the maximum Hc2 which may be …

An overview of the current state of development of MgB2 wires and tapes prepared by
several techniques is presented, based on the known literature data and our own results …

Carbon-substituted MgB2 single crystals, Mg (B1− xCx) 2 of 0.3–1.0 mm size were grown for
x= 0.02–0.15 by a high-pressure technique. The doping dependence of lattice constants …