Spin dependent impurity effects in the 2D frustrated magnetism of NiGa${}_2$S${}_4$

Yusuke Nambu, Satoru Nakatsuji, Yoshiteru Maeno +2

Impurity effects on the triangular antiferromagnets Ni${}_{1-x}{M}_x$Ga${}_2$S${}_4$ ($M=$ Mn, Fe, Co and Zn) are studied. The 2D frozen spin-disordered state of NiGa${}_2$S${}_4$ is stable ag…