Berezinskii-Kosterlitz-Thouless region and magnetization plateaus in easy-axis triangular weak-dimer antiferromagnet K${}_2$Co${}_2$(SeO${}_3$)${}_3$

Ying Fu, Han Ge, Jian Chen +11

We investigate the magnetic phase diagram of the bilayer triangular antiferromagnet K${}_2$Co${}_2$(SeO${}_3$)${}_3$, revealing a rich interplay among geometric frustration, bilayer coupli…