Synthesis, structure and magnetism of the new $S=\frac{1}{2}$ kagome magnet NH${}_4$Cu${}_{2.5}$V${}_2$O${}_7$(OH)${}_2$.H${}_2$O

E Connolly, P Reeves, D Boldrin +1

The study of quantum spin-liquid states (QSL) with lattice dimension $>1$ has proven an enduring problem in solid state physics. Key candidate materials are the $S=\frac{1}{2}$ kag…