Quantum Order by Disorder: A Key to Understanding the Magnetic Phases of BaCo${}_2$(AsO${}_4$)${}_2$

Sangyun Lee, Shengzhi Zhang, S. M. Thomas +6

BaCo${}_2$(AsO${}_4$)${}_2$ (BCAO), a honeycomb cobaltate, is considered a promising candidate for materials displaying the Kitaev quantum spin liquid state. This assumption is based on…