Physics Main Calendar

Abstract: Angle-resolved photoemission spectroscopy (ARPES) is a technique for determining the energy and momentum dispersions of electrons via the photoelectric effect. From the widths and positions of the bands in the ARPES data we can study the self-energy of the photoemitted electrons, which can tell us about the interactions felt by those electrons within the material. I will specifically discuss how both electron-boson and electron-electron interactions can lead to sudden changes in dispersion, a.k.a ‘kinks’ in ARPES data and I will review relevant papers on cuprates and other strongly correlated materials that study this phenomena.