Possible Dirac quantum spin liquid in a kagome quantum antiferromagnet YCu${}_3$(OH)${}_6$Br${}_2$[Br${}_x$(OH)${}_{1-x}$]

Zhenyuan Zeng, Xiaoyan Ma, Si Wu +13

We studied the magnetic properties of YCu${}_3$(OH)${}_6$Br${}_2$[Br${}_{1-x}$(OH)${}_x$] ($x$ = 0.33), where Cu${}^{2+}$ ions form two-dimensional kagome layers. There is no magnetic order…