Tin‐rich stannides CePd₂Sn₃, REPd₂Sn₄, Pr₂Pd₄Sn₇ and RE₃Pd₆Sn₁₀ – Crystal chemistry and ¹¹⁹Sn Mössbauer spectroscopy

Abstract

10 show Curie-Weiss behavior with experimental magnetic moments close to the free-ion values. Antiferromagetric ordering is detected at Néel temperatures of 8.2(1) K (PrPd 2 Sn 4 ), 10.3(1) K (NdPd 2 Sn 4 ) and 6.7(1) K (Pr 3 Pd 6 Sn 10 ). The three stannides show metamagnetic transitions at low external field strengths. The stannides CePd 2 Sn 3 , REPd 2 Sn 4 (RE = Ce, Pr, Nd) and RE 3 Pd 6 Sn 10 (RE = Ce, Pr) were further characterized via their 119 Sn Mössbauer spectra which reflect the different tin substructures: (i) cis-Sn 4 units, (ii) Sn 2 pairs and (iii) square grids.