Crystallographic and magnetic properties of Ho3Fe29−xTx (T=V and Cr)

Abstract A systematic study of syntheses, crystallographic and magnetic properties of the Ho 3 Fe 27.0 V 2.0 and Ho 3 Fe 29− x Cr x ( x =3.0 and 3.5) compounds has been performed in this work. The lattice parameters, Curie temperature T C , the saturation magnetization M S and the anisotropy field H A —at 4.2 K and room temperature—for the Ho 3 Fe 29− x T x (T=V and Cr) compounds were obtained. Spin reorientations of easy magnetization direction (EMD) are observed at around 150 K for Ho 3 Fe 27.0 V 2.0 and Ho 3 Fe 29− x Cr x ( x =3.0 and 3.5). First order magnetization process (FOMP) occurs in magnetization curves at 1.5 K for the magnetically aligned samples of Ho 3 Fe 27.0 V 2.0 and Ho 3 Fe 25.5 Cr 3.5 .