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TT: Fachverband Tiefe Temperaturen

TT 56: Superconductivity: Theory I

TT 56.7: Vortrag

Mittwoch, 11. März 2026, 16:30–16:45, CHE/0089

Constraints on the theoretical modeling of hole-doped La₂CuO₄ — •qiwei li¹, hanif hadipour², xue-jing zhang¹, and eva pavarini¹ — ¹Peter Grünberg Institute, Forschungszentrum Jülich, 52428 Jülich, Germany — ²Department of Physics, University of Guilan, Rasht 41335-1914, Iran

The low-energy electronic properties of hole-doped La₂CuO₄ are believed to be well captured by the single-band Hubbard model describing x²-y² electrons. This finds support, e.g., on Fermi surface and angle resolved photoemission experiments. Here we show [1] that this imposes constraints on the microscopic description of the system. Results are obtained via the LDA+DMFT method using a continuous time hybridization expansion Quantum Monte Carlo impurity solver, as implemented in [2].
[1] Q. Li, H. Hadipour, X-J Zhang, E. Pavarini, in preparation
[2] A.Flesch, G.Zhang, E.Koch, E.Pavarini, PRB 85, 035124 (2012)

Keywords: Cuprates; Eletronic structure; DMFT