Models and materials for generalized Kitaev magnetism Article Swipe
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1088/1361-648x/aa8cf5
· OA: W2631568866
The exactly solvable Kitaev model on the honeycomb lattice has recently received enormous attention linked to the hope of achieving novel spin-liquid states with fractionalized Majorana-like excitations. In this review, we analyze the mechanism proposed by Jackeli and Khaliullin to identify Kitaev materials based on spin-orbital dependent bond interactions and provide a comprehensive overview of its implications in real materials. We set the focus on experimental results and current theoretical understanding of planar honeycomb systems (Na<sub>2</sub>IrO<sub>3</sub>, α-Li<sub>2</sub>IrO<sub>3</sub>, and α-RuCl<sub>3</sub>), three-dimensional Kitaev materials (β- and γ-Li<sub>2</sub>IrO<sub>3</sub>), and other potential candidates, completing the review with the list of open questions awaiting new insights.
