Quadrupole interactions at 57Fe and 119Sn in 3d-metal antimonides

被引：3
|
作者：
Tkachenka, T. M. [1 ]
Virchenko, V. A. [1 ]
机构：
[1] Natl Acad Sci Belarus, Inst Solid State & Semicond Phys, Minsk, BELARUS
来源：
HYPERFINE INTERACTIONS | 2006年 / 168卷 / 1-3期
关键词：
3d-metal antimonide; NiAs-type of crystal structure; octahedral site; trigonal-bipyramidal site; stoichiometric composition; concentration excess; property-composition correlation; Mossbauer effect; quadrupole splitting of Mossbauer spectrum;
D O I：
10.1007/s10751-006-9392-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
3d-metal antimonides: Fe1+x Sb, N+x Sb, Co+x Sb and the (Ni1-y Fe (y) )Sb solid solution have been studied by the Mossbauer effect method at Fe-57 and Sn-119. It was found that the quadrupole interactions at the Fe and Sn nucleus in 3d-metal antimonides are very sensitive to the filling of different crystallographic sites with metal atoms. The metal atoms in trigonal-bipyramidal sites have a strong effect on the quadrupole splitting of Sn-119. They are nearest to anions (Sb or Sn) with the typical axial ratio of c/a = 1.25. The QS(x) dependence of Sn-119 in 3d-metal antimonides in the 0 <= x <= 0.1 concentration range can be used to determine x - the concentration of transition metal excess relative to the stoichiometric composition.
引用
收藏
页码：1047 / 1050
页数：4
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