Regensburg 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 80: Correlated Electrons: (General) Theory 2
TT 80.8: Vortrag
Donnerstag, 10. März 2016, 18:00–18:15, H18
The shape of the Compton profile for metals — •Michael Sekania1,2, Wilhelm H. Appelt1,3, Diana Benea4,5, Hubert Ebert5, and Liviu Chioncel1,3 — 1Theoretical Physics III, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, D-86135 Augsburg, Germany — 2Andronikashvili Institute of Physics, Tamarashvili 6, 0177 Tbilisi, Georgia — 3Augsburg Center for Innovative Technologies, University of Augsburg, D-86135 Augsburg, Germany — 4Faculty of Physics, Babes-Bolyai University, Kogalniceanustr 1, Ro-400084 Cluj-Napoca, Romania and — 5Department of Chemistry, Ludwig Maximilian University of Munich, Butenandstr. 5-13, D-81377 München, Germany
The electron momentum density and Compton profiles of weakly interacting metals are investigated in the framework of the density functional theory. The valence electrons contributions to the Compton profiles for different lattice symmetries are analyzed. We find that the shape of the Compton profiles can be modeled by the so-called q-Gaussian distribution recently proposed by Tsallis in the context of generalized canonical distributions. Our analysis shows that tails typically ignored in the conventional studies of the Compton profiles contain significant information about the electron momentum distribution in solids.