Zero-field muon-spin relaxation inCu Mnspin-glasses compared with neutron and susceptibility experiments

Zero-field muon-spin relaxation has been measured in $\mathrm{Cu}\mathrm{Mn}$ spin-glasses (5 at.% and 3 at.%) using the surface muon beam. Dynamic correlation time and static spin polarization of Mn moments, determined at $0.1T_g\sim 3T_g$, are consistent with neutron-spin-echo and ac-susceptibility measurements on the same specimens reported in different time windows. The combination of these three experiments demonstratest the spin freezing of $\mathrm{Cu}\mathrm{Mn}$ with the time-persistent Mn polarization below $T_g$.