Neutron powder diffraction and Mössbauer spectroscopy (119Snand155Gd) studies of the CeScSi-type GdMgSn and GdMgPb compounds

Abstract

Find more peer-reviewed articles on our open access repository:http://hal-univ-rennes1.archives-ouvertes.fr/ Gd Mössbauer spectroscopy. Mössbauer spectroscopy refinements and simulations reveal that the magnetic structure of GdMgSn is cycloidal at low temperature and undergoes a transition to a modulated magnetic structure above T ∼ 40 K. A similar magnetic transition is inferred for GdMgPb. The magnetic structures of GdMgSn and GdMgPb are compared with those of other CeScSi-type compounds.