Modified anisotropy and distinct phase diagrams in the nearly isotropic $S=1$ triangular-lattice antiferromagnet $\mathrm{R}{\mathrm{b}}_2\mathrm{Ni}(\mathrm{Se}{\mathrm{O}}_3{)}_2$

Xuejuan Gui, Xu-Guang Zhou, Chen Zhang +13

The triangular-lattice antiferromagnet serves as a benchmark platform for realizing exotic quantum phases, in which magnetic anisotropy plays an essential role. In this work, we re…