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中國有色金屬學報

ZHONGGUO YOUSEJINSHU XUEBAO

第10卷第z1期總第100期 1999年10月

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文章編號：1004-0609(1999)s1-0241-04

ErCoSn的X射線粉末衍射數(shù)據(jù)及Rietveld結(jié)構(gòu)精化

吳世偉張麗萍曾令民嚴嘉琳何維*

(廣西大學材料科學研究所, * 廣西大學物理系, 南寧 530004)

摘要: 報道了ErCoSn的X射線粉末衍射數(shù)據(jù), 并運用Rietveld 法對X射線衍射譜進行了精化。ErCoSn是正交結(jié)構(gòu), 空間群Pnma, a=7.1341A, b=4.5045A, c=7.4611A, V =239.77A³, D_x=9.553g·cm^-3, Z=4, R_p=11.48%,
R _wp=14.84%, 品質(zhì)因數(shù)F₃₀=52(0.0093, 62)。

關(guān)鍵字: ErCoSn X射線粉末衍射 Rietveld精化

X-RAY POWDER DIFFRACTION DATA AND RIETVELD REFINEMENT FOR RARE EARTH COMPOUND ErCoSn

Wu Shiwei, Zhang Liping, Zeng Lingmin, Yan Jialin and He Wei*

（Institute of Materials Science, Guangxi University, Nanning 530004, P. R. China
* Department of Physics, Guangxi University, Nanning 530004, P. R. China）

Abstract:The X-ray diffraction data of ErCoSn has been reported and the XRD pattern was refined by Rietveld method. The compound ErCoSn is orthorhombic with space group Pnma(62), a=7.1341A, b=4.5045A, c=7.4611A, V=239.77 A³, D_x=9.553 g·cm^-3 and Z=4 formula units per cell. The R factors R_p=11.48%, R _wp=14.84% and the figure of merit F₃₀=52(0.0093, 62) were obtained.

Key words: ErCoSn; X; ray powder diffraction; Rietveld refinement

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW