Rietveld Refinement of New Ternary Compound Al14Dy5Si
来源期刊：Journal of Rare Earths2006年第S1期
论文作者：何唯 张吉亮 曾令民
文章页码：78 - 81
摘 要：<正>A new ternary compound Al14 Dy5Si was discovered and studied by means of X-ray powder diffraction technique. The ternary compound Al14Dy5Si has a hexagonal BaPb3-type structure, space group R 3m（No. 166）, the lattice parameters a =0.61482（1） nm, c =2.09780（2） nm. The crystal structure of the compound Al14Dy5Si was successfully refined by using Rietveld method from X-ray diffraction data. The R-factors of Rietveld refinement are RP= 0.091 and Rwp = 0.120, respectively. The thermal dependence of the magnetization （M-T curves） for the compound was measured by a vibrating sample magnetometer. The experimentally determined magnetic effective paramagnetic moment isμeff = 23.22μB per formula unit （10.36μB per Dy atom）.
何唯，张吉亮，曾令民
摘 要：<正>A new ternary compound Al14 Dy5Si was discovered and studied by means of X-ray powder diffraction technique. The ternary compound Al14Dy5Si has a hexagonal BaPb3-type structure, space group R 3m（No. 166）, the lattice parameters a =0.61482（1） nm, c =2.09780（2） nm. The crystal structure of the compound Al14Dy5Si was successfully refined by using Rietveld method from X-ray diffraction data. The R-factors of Rietveld refinement are RP= 0.091 and Rwp = 0.120, respectively. The thermal dependence of the magnetization （M-T curves） for the compound was measured by a vibrating sample magnetometer. The experimentally determined magnetic effective paramagnetic moment isμeff = 23.22μB per formula unit （10.36μB per Dy atom）.
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