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Repozytorium publikacji
Politechniki Gdańskiej

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The LaPdIn 4 indide and elementary properties of the LaTIn 4 ( T = Ni, Pd, Pt) materials family

The indium-rich intermetallic compound LaPdIn4 is reported, prepared by arc-melting and annealing at 600 C. Single crystal X-ray diffraction found the material to be orthorhombic, space group Cmcm (No. 63), with lattice parameters a ¼ 4.5462(3) Å, b ¼ 16.9208(10) Å, and c ¼ 7.3100(5) Å. This previously unreported indide is isostructural with LaNiIn4 and LaPtIn4. It is demonstrated that all three compounds in the LaTIn4 (T ¼ Ni, Pd, Pt) family display metallic behavior with resistivity values between 20 and 30 mU-cm at 250 K. In addition, temperature and field-dependent magnetization measurements between 2 and 250 K show all to be weak paramagnets or diamagnets, with very small amounts of spin-bearing impurities present. The field-dependent magnetization showed evidence of de Haas-van Alphen quantum oscillations in the Pd and Pt containing compounds near applied fields of 5 T.

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