Algebraic spin liquids and state selection in the Kitaev- Heisenberg model in corner sharing lattices

GÓMEZ ALBARRACÍN, F.A.; ROSALES, H.D.

Simposio; SLAFES XXIII ? XXIII Latin American Symposium on Solid State Physics; 2018

In the last ten years, the Kitaev-Heisenberg model has attracted much attention since the work by G. Jackeli and G. Khaliullin [1], where they showed that Kitaev interactions are relevant in iridate materials. Experimental results in honeycomb iridates are not consistent with a pure Kitaev model, and exchange couplings may play an important role in the low temperature behaviour [2]. In this work, we present a study of the Kitaev-Heisenberg model in the pyrochlore and kagome lattices in the highly frustrated regime. The competition between both interactions gives rise to a plethora of low temperatura phenomena, including algebraic spin liquid phases, entropic state selection and broken discrete symmetries phases.