Dresden 2003 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
TT: Tiefe Temperaturen
TT 16: Mechanismus der HTSL
TT 16.7: Vortrag
Donnerstag, 27. März 2003, 11:55–12:10, HSZ304
Temperature dependence of the collective mode and its influence on the band splitting in bilayer cuprates — •Serguei Varlamov and Goetz Seibold — Institut fuer Physik, BTU Cottbus, PBox 101344, 03013 Cottbus, Germany
The recently observed bilayer splitting in high-Tc cuprates is analyzed within a model where the charge carriers are coupled to a phenomenological bosonic spectrum which interpolates between the marginal Fermi liquid structure and collective mode type behavior as a function of temperature. We argue that the origin of the collective mode is associated with dynamic incommensurate charge density waves. Moreover it is shown that the resulting temperature dependence of the self-energy Σ is in good agreement with that extracted from angle-resolved photoemission data.