Single crystals of Sm1.33Pd3Ga8 and Yb2Pd3X9 (X = Al, Ga) were grown in a gallium and aluminum flux, respectively. Sm1.33Pd3Ga8 crystallizes in a rhombohedral space group R-3m with lattice parameter a = 4.353(5) � and c = 38.98(4) � and V = 639.7(1) �3. The structure is composed of 3 Pd2Ga4 slab (A), 6 Sm-Ga disordered slab (B), and 3 PdGa2 slab (C) stacked in the c-direction with a sequence of [BABC]BABCBABC. Yb2Pd3X9 (X = Al, Ga) lattice parameters are a ~ 13.2 �, b ~ 7.6 �, and c ~ 9.4 �. Sm1.33Pd3Ga8 and Yb2Pd3X9 (X = Al, Ga) possess occupational and positional disorder, which increases the complexity of their crystal systems. Detailed comparisons of the structure, magnetic, and electrical properties of Sm1.33Pd3Ga8 and Yb2Pd3X9 (X = Al, Ga) are discussed.

Structure, magnetic, and electrical properties of Sm1.33Pd3Ga8 and Yb2Pd3X9 (X = Al, Ga)

247th National Meeting (2014)

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