In conventional superconductors, such as most Type I superconductors, the superconductivity is explained by the Bardeen-Cooper-Schrieffer (BCS) theory. According to BCS theory, electrons in a ...

Superconductivity ... theory known as the BCS theory. But the electronic structure of cuprates is fundamentally different than metals and requires a different theory to explain how superconducting ...

second-order phase transitions & the Ginzburg-Landau calculation for magnetic flux penetration WEEK 5 Microscopic theory of superconductivity, concepts of the energy gap and Cooper pairs, introduction ...

Following the emergence later in the 1950s of the microscopic Bardeen–Cooper–Schrieffer (BCS) theory of superconductivity, Lev Gorkov showed that Ginzburg–Landau theory emerged naturally ...

Before the BCS theory of conventional superconductivity, would you have thought that a microscopic mechanism of superconductivity existed? Being hardly in existence then, I cannot tell for sure.