Magnetic properties of the ternary RMgSn (R=Pr, Nd, Sm, Gd–Tm): First series of antiferromagnetic CeScSi-type structure compounds

The magnetic structures of RMgSn compounds (R=Ce, Pr, Nd, Tb)

“…The formation, crystal structures and melting behaviour of the two new families of rare earth intermetallic RMgSn [1,2] and RMgPb [3] phases have been reported recently. Previously to these reports no ternary R-Mg-X (X = Sn and Pb) compounds have ever been reported [4][5][6], but R = Eu and Yb.…”

Experimental investigation and thermodynamic re-assessment of the Mn–Nd binary system

“…The stable intermetallic compounds in the RE-MnGe (Si, Sn, In) systems show complex magnetic properties, mainly resulting from complex exchange interactions between 4f-moments of the rare-earth metals and the itinerant 3d moments of Mn [7][8][9]. In particular, the ternary compounds (e.g., RMn 2 X 2 with ThCr 2 Si 2 -typed structure and REMnX compounds with CeFeSi or TiNiSi-typed structure) in the Nd-Mn-Ge/Si ternary systems were discovered to show interesting magnetic properties including magnetocaloric effect, gaint magnetoresistance effect and magnetic-field-induced strain [10][11][12][13][14].…”

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

“…139) [1][2][3] and order antiferromagnetically with T N ranging from 2.5 K for TmMgPb to 79 K for SmMgSn [3,4]. A few other compounds in the RTX series (where T is a transition metal and X is a p-block element) such as PrScSi [5], PrScGe [5,6], and ErZrSb [7] are antiferromagnetic at low temperatures, while most CeScSi-type compounds are ferromagnetic at low temperatures: RScSi (R = Ce,Nd,Sm,Gd) [5,[8][9][10], RScGe (R = Ce − Nd,Sm,Gd,Tb) [5,6,[8][9][10][11][12][13][14], RZrSb (R = Gd − Tm) [7,15], and RTiGe (R = Gd,Tb) [16][17][18][19][20].…”

“…The first provides local information on magnetic environments, while the second yields values for ordered moments and a description of the long-range magnetic order [23]. We have therefore used these techniques to complete the magnetic structure characterization of the CeScSi-type RMgSn and RMgPb series by studying the antiferromagnetic structure of GdMgSn and GdMgPb (T N = 48(2) K and 47(2) K, respectively) [3,4]. We performed 119 Sn and 155 Gd Mössbauer spectroscopy and neutron powder diffraction using a largearea flat-plate-geometry sample holder [24,25].…”