Crystalline and magnetic structures of Sr2FeMoO6 double perovskites

被引:17
作者
Chung, M. K.
Huang, P. J.
Li, W. -H. [1 ]
Yang, C. C.
Chan, T. S.
Liu, R. S.
Wu, S. Y.
Lynn, J. W.
机构
[1] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan
[2] Acad Sinica, Inst Phys, Taipei 115, Taiwan
[3] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[4] Natl Taiwan Univ, Ctr Nano Storage Res, Taipei 106, Taiwan
[5] Natl Dong Hwa Univ, Dept Phys, Hualien 974, Taiwan
[6] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
关键词
neutron scattering; perovskite; magnetic ordering;
D O I
10.1016/j.physb.2006.05.140
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Neutron diffraction and magnetic susceptibility has been used to study the crystalline and magnetic structures of Sr2FeMoO6. The compound crystallizes into a tetragonal 14/m symmetry. Both of the Fe and Mo moments were found to be ordered at low temperatures, with the ordered moments beginning to develop below 450 and 165 K for the Fe and Mo ions, respectively. The spin configuration may be viewed as consisting of ferromagnetic Fe/Mo planes that are mutually intersected at an angle of 120 degrees, and form a non-collinear structure. The saturated moments for the Fe and Mo ions were <mu(z)> = 3.30(4)mu(B) and 1.74(9)mu(B), respectively. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:418 / 420
页数:3
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