High field neutron diffraction study in Ce(Fe0.95Si0.05)2 compound

被引：2

作者：

Haldar, A. ^{[1
]}

Das, A. ^{[2
]}

Hoser, A. ^{[3
]}

Hofmann, T. ^{[3
]}

Nayak, A. K. ^{[1
]}

Suresh, K. G. ^{[1
]}

Nigam, A. K. ^{[4
]}

机构：

[1] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

[2] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India

[3] HZB, Inst Complex Magnet Mat, D-14109 Berlin, Germany

[4] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

DOPED CEFE2;

D O I：

10.1063/1.3556917

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Si substitution at Fe site causes the ferromagnetic to antiferromagnetic (AFM) transition at low temperatures in CeFe2. We have carried out temperature and field variation of neutron diffraction measurements on Ce(Fe0.95Si0.05)(2) to unravel its magnetic structure along with its lattice structure. The Curie temperature (T-C) and the Neel temperature (T-N) are 184 and 82 K, respectively. Above T-N, it exhibits a cubic (Fd (3) over barm) structure. On lowering the temperature below T-N, weak superlattice reflections are observed indicating the onset of AFM ordering accompanied by a rhombohedral distortion. The crystal structure in the AFM state is refined in R (3) over barm space group. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3556917]

引用

页数：3

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