Electron-boson interactions in magnets and superconductors

Donglai Feng

Electron-boson interactions play vital roles in the formation of various ground states or quantum orders in correlated materials. Here we present several such examples, where the electron-phonon or electron-magnon interactions are probed by ARPES. The electron boson interactions in (Ba,K)Mn₂As₂, LiTi₂O₄, LAO/KTO and 12442 iron-based superconductors are measured, and their relations to magnetism and superconductivity will be discussed.