“…In NdMn 6 Ge 6 , the angle between the magnetic moments and the c-axis changes [4] from 42 • at 30 K to 0 • at 150 K and then to 20 • at 300 K, in fair agreement with the earlier reported values [3]. These changes are further confirmed by the temperature dependence of the magnetization [4] which reveals two spin reorientations at ca. 40 and 275 K. The Curie temperature of NdMn 5.5 Fe 0.5 Ge 6 is 430 K. In NdMn 5 FeGe 6 , the angle between the neodymium and manganese magnetic moments and the c-axis changes [4] at 300 K, whereas the collinear iron magnetic moments are antiferromagnetically coupled.…”