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- W1024657112 abstract "Magnetic properties of the rare earth compounds of the ThMn12-type structure (tetragonal I4/mmm space group) have caused a considerable interest both from the fundamental point of view as well as potential precursors for hard magnetic materials with high Fe content like SmFe10Si2 (for a review see Ref. [9]). In the I4/mmm space group, four different sets of equivalent positions 2a, 8f, 8j and 8i (in Wyckoff notation) are available. The rare earth atoms occupy the 2a sites and the transition-metal (Fe) atoms start by occupying a set of 8f sites. A special situation exists for intermetallic compounds of RFe4Al8 stoichiometry. There are 26 atoms (two molecules) per unit cell. The iron atoms occupy only the 8f sublattice, whereas, the aluminium atoms occupy the 8j and 8i positions. Fe, mixing with the Al atoms with increasing Fe content over four per formula unit, also occupies these positions. The magnetic [1, 2], neutron diffraction [6, 7] and Mossbauer effect [4, 5, 11] measurements have established a complex antiferromagnetic (AF) ordering in the RFe4Al8 compounds even when the rare earth elements are non-magnetic (R = Y, Lu, La and Ce). In this case, antiferromagnetism is determined by Fe-Fe magnetic moment interactions in 8f positions [1]. The transition temperatures TN determined from susceptibility measurements are often lower than those determined from the Mossbauer effect [1, 11]. In this report, investigations of the Fe Mossbauer effect in the YbFe4Al8 compound are presented. Early, Yb Mossbauer studies [2] and LIII X-ray absorption investigations [8] have indicated that the Yb ions probably carry magnetic moment. However, the examinations of magnetic properties of Yb1−xScxFe4Al8 alloys [10] have Magnetic and hyperfine interaction in YbFe4Al8 compound Piotr Gaczynski, Henryk Drulis" @default.
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- W1024657112 date "2004-01-01" @default.
- W1024657112 modified "2023-10-15" @default.
- W1024657112 title "Magnetic and hyperfine interaction in YbFe4Al8 compound" @default.
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