Dzyaloshinsky-Moriya anisotropy in reentrant alloys

We have carried out torque and spin-resonance measurements on a AuFe reentrant alloy. Dzyaloshinsky-Moriya anisotropy effects appear at much higher temperature in the resonance signals than in the static torque results. We propose a physical description which provides a consistent framework for interpreting these and certain other reentrant-alloy effects.