Structural and Magnetic Properties of Ho₃Fe_29-xT_x (T=V and Cr) Compounds

Abstract:

The crystallographic structural characteristics and magnetic properties of Ho₃Fe_29-xT_x (T=V and Cr) compounds have been investigated by using Rietveld refinement analysis of X-ray diffraction (XRD) pattern and magnetic measurements. The calculated results indicate that among the 11 different kinds of Fe sites in these Ho-Fe compounds the preferential sites of the stabilizing elements V and Cr are quite different. The refined lattice parameters of these compounds are in good agreement with the experimental data. Spin reorientations of easy magnetization direction (EMD) are observed at around 150 K for Ho₃Fe₂₇V₂ and Ho₃Fe_25.5Cr_3.5. At the around 1.7 T critical fields (HCR) first order magnetization process (FOMP) occurs in magnetization curves at 4.2 K for the magnetically aligned samples of Ho₃Fe₂₇V₂ and Ho₃Fe_25.5Cr_3.5.

• Periodical: Advanced Materials Research (Volume 669)
• Pages: 46-50
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.669.46
• Online since: March 2013
• Authors: Y.N. Han, X.F. Han, H.L. Liu
• Keywords: Crystallographic Structure, Intermetallic Compound, Magnetic Property, Rietveld Refinement

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