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The new intermetallic compound La3Cu3Bi4 was synthesized by arc melting method followed by annealing.The crystal structure refined using the Rietveld method and X-ray powder diffraction data showed to be Y3Au3Sb4 structure type with space group I43D(No.220).The unit cell parameters were a = 0.997 797(7) nm and V = 0.993 41(2) nm3.The structure was characterized by covalent Cu-Bi4 tetrahedron, which formed three-dimensional network by sharing corners and La atoms separated in the space of Cu-Bi4 tetragon.The expansion of La3Cu3Bi4 studied by using low temperature X-ray di?raction showed to be positive expansion and diminished with the temperature rising.
The new intermetallic compound La3Cu3Bi4 was synthesized by arc melting method followed by annealing. The crystal structure refined using the Rietveld method and X-ray powder diffraction data showed to Y3Au3Sb4 structure type with space group I43D (No. 220). The unit cell parameters were a = 0.997 797 (7) nm and V = 0.993 41 (2) nm3. The structure was characterized by covalent Cu-Bi4 tetrahedron, which formed three- dimensional network by sharing corners and La atoms separated in the space of Cu- Bi4 tetragon.The expansion of La3Cu3Bi4 studied by using low temperature X-ray di? raction showed to be positive expansion and diminished with the temperature rising.