Magnetoacoustic effects in rare earth iron garnets

Abstract

Linear magnetoacoustic birefringence and transverse ferroacoustic resonance experiments were performed with rare earth iron garnet samples in the temperature range between 77 and 300°K. The magnetoelastic coupling constant B 2 for Yb, Dy, Tb and Gd-Iron Garnet is compared with results from magnetostriction experiments. The preliminary damping results are discussed, applying the slow relaxation theory to the rare earth iron garnet system.