Crystal structure of Er2Fe17 nitride

被引：4
作者：
Voronin, VI
Zinin, AV
Kudrevatykh, NV
Pirogov, AN
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620219, Russia
[2] Ural State Univ, Inst Phys & Appl Math, Ekaterinburg 620083, Russia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 266卷 / 1-2期
关键词：
rare earth compounds nitrides; disordered structure; neutron diffraction;
D O I：
10.1016/S0925-8388(97)00483-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The crystal structure of the Er1.85Fe17.3N2.58 compound, which belongs to the family of R2Fe17N3-type nitrides has been studied by neutron diffraction. It was found that the structure of this compound should be described as a partially disordered Th2Ni17-type. Its peculiar feature is a random substitution of Fe-atoms ("dumbbells") for Er atoms. It leads to a deviation from the precise 2:17 stoichiometry to a more Fe-rich ratio (up to 2:19). Nitrogen atoms in this nitride occupy mainly only one type of interstitial 6h-sites. (C) 1998 Elsevier Science S.A.
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页码：39 / 42
页数：4
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