A general maximum-entropy method for model-free reconstructions of magnetization densities from polarized neutron diffraction data

被引:22
作者
Schleger, P [1 ]
PuigMolina, A [1 ]
Ressouche, E [1 ]
Rutty, O [1 ]
Schweizer, J [1 ]
机构
[1] MDN, SPSMS, DEPT RECH FONDAMENTALE MAT CONDENSEE, F-38054 GRENOBLE 9, FRANCE
来源
ACTA CRYSTALLOGRAPHICA SECTION A | 1997年 / 53卷
关键词
D O I
10.1107/S0108767397002158
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A general method for the model-free reconstruction of magnetization densities is presented. The technique is based upon the maximum-entropy principle and is valid for systems with any space-group symmetry, any physically reasonable ordered moment and allows for the incorporation of relevant corrections such as extinction. Thus, it is possible, for the first time, to reconstruct the real-space magnetization densities in essentially any physical system exhibiting a ferromagnetic spin alignment (either natural or induced) from polarized neutron diffraction experiments. The technique is illustrated for the purely organic ferromagnet, beta-4,4,5,5-tetramethyl-2-p-(nitrophenyl)-3-oxido-4,5-dihydroimidazolium 1-oxyl.
引用
收藏
页码:426 / 435
页数:10
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