Crystal structure and physical properties of the new ternary compounds Nd3Pt23Si11 and Pr3Pt23Si11
Résumé
The two ternary compounds, Pr3Pt23Si11 and Nd3Pt23Si11 have been synthesized for the first time. They both crystallize in the same Fm-3m cubic space group as Ce3Pt23Si11. Their lattice parameters are aPr = 16.8633(3) Å and aNd = 16.8498(4) Å for Pr3Pt23Si11 and Nd3Pt23Si11, respectively. From magnetic and heat capacity measurements, Nd3Pt23Si11 is found to present a magnetic transition at 1.6 K, whereas for Pr3Pt23Si11, the magnetic susceptibility shows typical paramagnetic Van Vleck behavior at low temperatures.
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