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Magnetic properties of some rare earth silicides of the type RFe/sub 2/Si/sub 2/

Conference · · AIP (Am. Inst. Phys.) Conf. Proc.; (United States)
OSTI ID:7317835

RFe/sub 2/Si/sub 2/ compounds (where R = Rare Earth, Y or Th) crystallize in tetragonal BaAl/sub 4/-type structure. Magnetic properties of these compounds with R = Y, Tb, Ho and Er have been examined in the temperature range 4.2 to 950/sup 0/K. TbFe/sub 2/Si/sub 2/ exhibits a Neel temperature of 5.5/sup 0/K indicating that the rare earth sublattice orders antiferromagnetically. In HoFe/sub 2/Si/sub 2/ and ErFe/sub 2/Si/sub 2/, the rare earth sublattice does not order at temperatures down to 4.2/sup 0/K. The iron sublattice orders magnetically at nearly 800/sup 0/K in all the compounds investigated. Saturation magnetization studies on YFe/sub 2/Si/sub 2/ indicate partial ordering of iron moments confirming earlier work that a majority of iron atoms are diamagnetic. Crystal field interactions seem to be significant in TbFe/sub 2/Si/sub 2/.

OSTI ID:
7317835
Journal Information:
AIP (Am. Inst. Phys.) Conf. Proc.; (United States), Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Vol. 34; ISSN APCPC
Country of Publication:
United States
Language:
English