Regensburg 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 55: Electron theory and micromagnetism
MA 55.5: Vortrag
Freitag, 5. April 2019, 10:30–10:45, H38
Ferromagnetism in alternating Hubbard ladder — •Kaouther Essalah1, Ali Benali1, Anas Abdelwahab2, Eric Jeckelmann2, and Richard Scalettar3 — 1University of Tunis El-Manar, Tunis, Tunisia — 2Leibniz University, Hannover, Germany — 3University of California, Davis, USA
We are using Density Matrix Renormalization Group (DMRG) method to study spin correlations in chains with many variants of alternating number of legs. The system is described using the half-filled Hubbard model. We are calculating excitation gaps, charge and spin densities as well as correlation functions. We compare our results to those of the well known geometries of even and odd number of leg ladders.