Speaker
Daniil Evtushinsky
(EPFL Lausanne)
Description
It is becoming clear that strong electron interactions with other electrons and with the magnetic excitations unify all iron-based materials, and probably, all unconventional superconductors in general. I will review the electronic self energy, determined from the angle-resolved photoemission spectroscopy (ARPES) for the 11, 111, 122, and 1111 families, and will compare it to the situation in the compounds of other transition metals. I will show how the spectral features at the energy scale of the whole $3d$ band match with the results of calculations for correlated systems and how the low-energy features correspond to the peculiarities found in the spin-fluctuation spectrum measured in neutron scattering.
Author
Daniil Evtushinsky
(EPFL Lausanne)
