MAGNETIC-BEHAVIOR OF ND3CO29SI4B10

The magnetic behaviour of a novel quaternary rare-earth compound Nd3Co 29Si4B10 has been investigated by AC magnetic susceptibility and Fe-57 Mossbauer effect spectroscopy measurements. The Nd3Co29Si4B10 compoun d exhibits a magnetic transition around T-c1 similar to 200 K with a s econd magnetic transition occurring around T-c2 similar to 43 K. Addit ion of similar to 0.5 wt% Fe-57 is found to decrease the magnetic orde ring temperatures to T-c1 similar to 167 K and T-c2 similar to 38 K. S imilar to other Co-rich, light rare-earth compounds, Nd3Co29Si4B10 is likely to exhibit ferromagnetic ordering below T-c1. (C) 1998 Elsevier Science B.V. All rights reserved.