Abstract
Low-frequency elastic and anelastic properties of the ceramic PbFe0.5Nb0.5O3 were investigated by the inverted torsion pendulum in the temperature range including the Neel (TN) and Curie (TC) temperatures. The shear modulus and the internal friction anomalies observed in the vicinity of TN are due to magnetostriction connection between a strain and magnetic spin ordering. The electric field effect on elasticity of the sample in the vicinity of TC was found.
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