NEUTRON-POWDER-DIFFRACTION STUDY OF THE STRUCTURE OF ND2FE17N4.5

被引：7
作者：
YAN, QW
ZHANG, PL
WEI, YN
SUN, K
HU, BP
WANG, YZ
LIU, GC
GAU, C
CHENG, YF
机构：
[1] CHINESE ACAD SCI,SAN HUAN RES LAB,BEIJING 100080,PEOPLES R CHINA
[2] CHINESE ACAD SCI,INST ATOM ENERGY,BEIJING 102413,PEOPLES R CHINA
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.48.2878
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystal and magnetic structure of Nd2Fe17N4.5 at room temperature was refined by Rietveld analysis of neutron-powder-diffraction data. We found that Nd2Fe17N4.5 has a Th2Zn17-type structure (space group R 3m) and the nitrogen atoms occupy both 9e and 18g sites with occupancies 0.80 and 0.35, respectively. A physical model is proposed based on the large isotropic thermal factor for the 18g sites.
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页码：2878 / 2879
页数：2
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