Abstract
Structural parameters and the magnetic structure of TbPtGa are determined from neutron powder diffraction performed in white beam time-of-flight technology. The crystallographic space group is Pnma with four formula units per cell and Tb, Pt and Ga at sites 4c(x, 1 4 , z) each. Refined lattice constants, atomic positional parameters and interatomic distances are presented. At 25 ± 1 K TbPtGa undergoes a magnetic phase transition into a collinear antiferromagnetic structure with propagation vector k=[0, 1 2 , 0] . Terbium magnetic moments of 7.4(1) μ B are oriented along the b axis.
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