TRANSPORT, MAGNETIC, AND SN-119 MOSSBAUER STUDIES ON MAGNETICALLY ORDERED VALENCE FLUCTUATING COMPOUND SMRUSN3

SmRuSn3 is a unique compound among the known Sm-based valence fluctuat ion (VF) systems. Its crystallographic structure has two inequivalent Sm sites and Sm ions at only one of them are in VF state while the Sm ions in the other site orders magnetically. Our (119)Mossbauer studies show a quadrupolar splitting at the Sn site, consistent with the nonc ubic symmetry of the Sn site. A broadening of the Mossbauer spectrum i s seen due to magnetic ordering of the material. The transferred hyper fine field at Sn site at 4.2 K is small. (C) 1996 American Institute o f Physics.