The Magnetic Structure of $E{r}_{2}T{i}_2{O}_7$

A. K. R. Briffa, R. J. Mason, M. W. Long

We employ the previously published neutron scattering experiments\cite{1,2,3} to suggest that Er${}_2$Ti${}_2$O${}_7$ has a broken-symmetry multiple-{\bf q} state with tetragonal magneti…