Condensed Matter Seminar - Tomasz Durakiewicz, Los Alamos National Laboratory - Time-resolved ARPES of f-electron systems
The coherence temperature, T*, sets an important energy scale in correlated f-electron systems. In this scale the hybridization gap opens at or in the vicinity of the Fermi level and the gap magnitude scales with effective quasiparticle mass. The coherent part of the self-energy corresponding to the gap formation is reduced at high temperatures, and the incoherent part corresponds to quasiparticle scattering. The coherent term in the self-energy expresses the mixing of f and d bands and is directly responsible for repulsion, producing the hybridization gap. In this talk I will show examples of time-resolved ARPES measurements of f-electron systems, providing valuable information about the evolution of coherence and the dynamics of the related quasiparticle states.
Location: Jadwin 475
Date/Time: 11/29/12 at 2:00 pm - 11/29/12 at 3:30 pm
Category: Condensed Matter Seminar