ChemInform Abstract: Synthesis, Structures and Properties of Cubic Ln3In and Ln3InZ Phases ( Ln: Y, La; Z: B, C, N, O). The Effect of Interstitial Z on the Superconductivity of La3In.
Abstract
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ChemInform Abstract
Samples of La3In, Y3InCx, and La3InZx (0.3 ≤ x ≤ 1.5; Z: C and O), La3InBx (0.7 ≤ x ≤ 1.5), and La3InN having the inverse perovskite structure are prepared by powder sintering, fusion and annealing techniques. The products are characterized by powder and in the case of La3InN and Y3InC (both cubic, space group Pm3m, Z = 1) by single crystal XRD, magnetic susceptibility and conductivity measurements, and by extended Hueckel calculations. Values of Tc, supercurrent shielding, magnetic susceptibility χ293, and μeff are reported. Tc ≈ 10 K and 104χRT ≈ 4 emu mol-1 are retained through the B and O series. Superconductivity is not observed for Y3InC, La3InC, and La3InN.
