Absolute measurements of the high-frequency magnetic dynamics in high-Tc superconductors

S. M. Hayden, G. Aeppli, P. Dai +6

We review recent measurements of the high-frequency dynamic magnetic susceptibility in the high-$T_c$ superconducting systems La${}_{2-x}$Sr${}_x$CuO${}_4$ and YBa${}_2$Cu${}_3$O${}_{6+x}$.…