Abstract

Intermediate state in type-I superconductors is one of the oldest challenges of superconductivity put forward by Gorter and Casimir, Pearls, F. London, and Landau back in the 1930s. In this chapter, we review the main properties of this state and principal theoretical approaches to interpret them. Recent experimental and theoretical achievements in this field are discussed in more details.

Keywords: type-I superconductors, intermediate state, thermodynamic properties, magnetization
