Mossbauer study of iron sulfides doped with 3d-transition metals

被引：3
|
作者：
Nam, HD
Kim, EC [1 ]
Han, JS
机构：
[1] Yeungnam Univ, Dept Phys, Kyongsan 712749, South Korea
[2] Yeungnam Univ, Sch Elect Engn & Comp Sci, Kyongsan 712749, South Korea
来源：
SOLID STATE COMMUNICATIONS | 2005年 / 135卷 / 05期
关键词：
3d-transition metal; iron sulfide; transition;
D O I：
10.1016/j.ssc.2005.05.003
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
It is found by Mossbauer measurements on M0.025Fe0.975S (M=Sc, Ti, V, Cr, Mn, Co, Ni, Cu) that the 3d-transition metal impurities profoundly affect both the crystallographic and spin rotation transitions of iron sulfide. It is noteworthy that both V0.025Fe0.975S and Co0.025Fe0.975S have Morin transition temperatures T-M which are distinctly different from that of FeS; furthermore, the directions of changes of T-M are opposite for V0.025Fe0.975S and Co0.025Fe0.975S. A vanadium impurity of 2.5% of the metal atoms in the iron sulfide makes the crystallographic transition take place rapidly in a narrow temperature region of about 15 K, while the a transition in FeS takes place over a wide temperature range of about 200 K. It is also found that the a transition for V0.025Fe0.975S has a hysteresis width of 5 K. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：327 / 329
页数：3
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