The Electronic Structure group

We investigate electronic structure of strongly correlated materials by means of angle-resolved photoemission spectroscopy (ARPES), ultraviolet photoemission spectroscopy (UPS) and X-ray photoemission spectroscopy (XPS). Our current research is focused on iron chalcogenides with unconventional superconductivity and intermetallic cerium compounds, which exhibit heavy fermion behaviour.

The laboratory is equipped with Scienta R4000 photoelectron analyzer and a helium lamp, which yields a high intensity ultraviolet radiation with the photon energies of 21.2 eV and 40.8 eV. ARPES and UPS measurements can be performed at temperature down to 11 K with the energy resolution between 2.5 and 25 meV. XPS studies are carried out with Mg K_alpha and Al K_alpha radiation. The experimental setup enables scanning of band structure, Fermi surface, valence band spectral density and core levels.