Magnetic behavior of some rare earth germanides of the type RFe2Ge2

1 January 1976

proceedings article
Published by AIP Publishing in AIP Conference Proceedings

Vol. 29 (1) , 585-586
https://doi.org/10.1063/1.30463

Abstract

Magnetic properties of tetragonal rare earth germanides of the type RFe₂Ge₂, where R=Pr, Gd, Tb, Er and Th, have been investigated in the temperature interaval 4.2 to 273 K and in magnetic fields up to 20 kOe. The magnetization of ThFe₂Ge₂ is small and weakly temperature dependent. The compounds with Pr, Gd and Tb show antiferromagnetic ordering with Néel temperature of 14 K, 11 K and 7.5 K, respectively. The Pr sublattice in PrFe₂Ge₂ and the Tb sublattice in TbFe₂Ge₂ both undergo a transition, which at 4.2 K occurs at a field strength of about 15 kOe. The Gd compound does not show a transition up to a field of 20 kOe. The compound ErFe₂Ge₂ is paramagnetic in the temperature range investigated. However, some magnetization from Fe sublattice seems to be present in all the compounds.

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