Dresden 2017 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 53: Poster Session: Superconductivity 1

TT 53.4: Poster

Mittwoch, 22. März 2017, 15:00–19:00, P2-OG2

Incommensurate magnetism of hole-doped cuprates in the normal phase: a LDA+(C)DMFT study — •Amin Kiani and Eva Pavarini — Institute for Advanced Simulation, Forschungszentrum Jülich, 52425 Jülich, Germany

In order to investigate the magnetic incommensurate structures in hole-doped cuprates, we calculate the static lattice magnetic susceptibility χ(q;0) of the single-band t-t′ Hubbard model in the normal phase. The calculations are performed via the local density approximation+(cluster) dynamical mean-field theory (LDA+(C)DMFT), following the implementation presented in Ref. [1]. Within this approach we study the effect of the next-nearest-neighbor hopping t′ and the Coulomb interaction U as a function of the filling. We will show our results for the representative case La2−xSrxCuO4 (LSCO), and compare with available experiments.

[1] A. Kiani and E. Pavarini, Phys. Rev. B 94, 075112 (2016)

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