Influence of spin reorientation on the magnetoelastic properties of NdFe10.5V1.5

Abstract The thermal expansion and magnetostriction of the NdFe10.5V1.5 ferromagnetic compound were measured using the strain gauge technique, in temperatures ranging from 77 to 320 K and external field up to 1.5 T. Results show an anomalous dropdown of the thermal expansion coefficient corresponding well to the spin reorientation temperature of this compound T SR ≈ 133 K . The drop amplitude is reduced and its temperature width is broadened when applying magnetic field. The anisotropic and volume-forced magnetostriction exhibit, below 0.5 T, a well-pronounced maximum around TSR. It arises from the field-induced rotation of the magnetic moments which is maximum at TSR.