Elastic light scattering from the reentrant spin glass EuxSr1−xS

Abstract
Elastic light scattering from the reentrant spin glass EuxSr1−xS has been used to display the transition from paramagnet to ferromagnet and finally to spin glass as the temperature is lowered. The results suggest the persistence in the spin glass region of a correlation length which is a sizable fraction of the wavelength of visible light.