X-ray powder diffraction data and structural refinement of Er3Co6Sn5

被引：0

作者：

He, W

Zeng, LM

Qin, W

Yan, JL

Hao, JM

机构：

[1] Univ Sci & Technol China, Ctr Fundamental Phys, Hefei 230026, Peoples R China

[2] Guangxi Univ, Inst Mat Sci, Nanning 530004, Peoples R China

[3] Tianjin Elect Mat Res Inst, Tianjin 300192, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 1999年 / 9卷 / 01期

关键词：

Er2Co6Sn5; X-ray powder diffraction; Rietveld structural refinement;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The compound Er3Co6Sn5 has been studied by means of X-ray powder diffraction technique and refined by Rietveld method. The compound Er3Co6Sn5 has an orthorhombic Dy3Co6Sn5-type structure, space group Immm (No. 71), Z = 2 and D-x = 9.465 g/cm(3). At room temperature, the lattice constants are a = 4.296 6(4) Angstrom, b = 12. 289 7(9) Angstrom, c = 9.627 1(6)Angstrom. The Rietveld structural refinement was performed and led to R-wp = 0. 196 and R-p = 0.153. The figure of merit F-N for the X-ray powder diffraction data is F-30 = 34.7 (0.009 0, 96). The present structural refinement supports that Er(1), Er(2), Co(1), Co(2), Sn (i) and Sn(2) atoms occupy the 2 a, 4 g, 4 j, 8 l, 2 c and 8 l positions, respectively.

引用

页码：86 / 88

页数：3

共 10 条

[1]

[Anonymous], 1974, INT TABLES XRAY CRYS, VIV

[2]

DEMESQUITA AH, 1967, ACTA CRYSTALLOGR, V22, P497

[3] THE STANNIDES RE(3)CO(6)SN(5) (RE=Y, ND, SM, GD, TB, HO-TM) WITH DY3CO6SN5-TYPE STRUCTURE [J].