Regensburg 2016 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 80: Correlated Electrons: (General) Theory 2

TT 80.3: Vortrag

Donnerstag, 10. März 2016, 16:30–16:45, H18

Doping effects on the three-orbital spin-orbit-coupled Hubbard model — •Aaram J. Kim¹, Harald O. Jeschke¹, Philipp Werner², and Roser Valenti¹ — ¹Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt am Main, Germany — ²Department of Physics, University of Fribourg, Chemin du Musée 3, 1700 Fribourg, Switzerland

We investigate doping effects in a spin-orbit-coupled three-orbital Hubbard model by means of the dynamical mean-field theory combined with the continuous-time quantum Monte Carlo method. Near 5/6-filling, the spin-orbit-coupled Mott insulator emerges as a consequence of the interplay between the relativistic spin-orbit term and the strong U interaction. In particular, we discuss the spectral properties of the hole-doped spin-orbit-coupled Mott insulator and its phase transitions as a function of interaction U and doping concentration. The two-particle correlation function is also studied to show the dynamic properties of the system. We discuss implications of the model results for real materials.