Dynamic susceptibility of a spin ice near the critical point

A. V. Shtyk, M. V. Feigelman

We consider spin ice magnets (primarily, $\mathrm{D}{\mathrm{y}}_2\mathrm{T}{\mathrm{i}}_2{\mathrm{O}}_7$) in the vicinity of their critical point on the $(H,T)$ plane. We find that the longitudinal susceptibility diverges…