Neutron spin-echo study of the critical dynamics of spin-5/2 antiferromagnets in two and three dimensions

K. F. Tseng, T. Keller, A. C. Walters +2

We report a neutron spin-echo study of the critical dynamics in the $S=5/2$ antiferromagnets MnF${}_2$ and Rb${}_2$MnF${}_4$ with three-dimensional (3D) and two-dimensional (2D) spin sys…