II.4 — Superconductivity: introduction on RF vs. magnets

The aim of this lecture is to provide to physicists non-expert in material science a glimpse on how materials are tailored (and must be chosen) for their specific applications in accelerators. After an introduction the lecture is divided in three parts: 1) Recall on superconductivity: how and when to use the various models, 2) Vortex behavior: how it fixes the limits of operation in a superconductor, 3) Optimization of superconducting materials according to their applications.