Strength of Kitaev Interaction in Na${}_3$Co${}_2$SbO${}_6$ and Na${}_3$Ni${}_2$BiO${}_6$

Zefeng Chen, Binhua Zhang, Weiqin Zhu +5

Kitaev spin liquid is proposed to be promisingly realized in low spin-orbit coupling $3d$ systems, represented by Na${}_3$Co${}_2$SbO${}_6$ and Na${}_3$Ni${}_2$BiO${}_6$. However, the existenc…