Struttura della materia
Electron-electron interactions in weakly and strongly correlated solids determined by ARPES
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Europe/Rome
Sala Lauree (Dipartimento di Fisica - Ed. G.Marconi)
Sala Lauree
Dipartimento di Fisica - Ed. G.Marconi
Description
I will report on the determination of the energy and momentum dependence of scattering rates in various solids using angle-resolved photoemission spectroscopy. First, I will present results on the prototypical nearly-free electron metal Na. Then I will describe recent experiments on the ferromagnet Ni, from which we obtain evidence for spin dependent scattering rates due to a strong coupling to Stoner excitations. Finally, I will present studies of the momentum and energy dependent mass renormalization and scattering rates of charge carriers in various iron-based superconductors. Remarkable differences between theory and experiment will be illustrated.
Organised by
Josè Lorenzana