Magnetic order of CePd5Ge3 and CePt5Ge3

Abstract The magnetic ordering in CePd5Ge3 and CePt5Ge3 previously discovered by bulk measurements is shown to be of long-range antiferromagnetic type by neutron diffraction performed on polycrystalline samples at low temperatures. Antiferromagnetic satellite peaks are found in both compounds below the Neel temperatures. The magnetic peaks in CePd5Ge3 indicate a simple antiferromagnetic order along c ∗ with a propagation vector τ=(0 0 1) .