A GENERAL MAXIMUM-ENTROPY METHOD FOR MODEL-FREE RECONSTRUCTIONS OF MAGNETIZATION DENSITIES FROM POLARIZED NEUTRON-DIFFRACTION DATA

Citation
P. Schleger et al., A GENERAL MAXIMUM-ENTROPY METHOD FOR MODEL-FREE RECONSTRUCTIONS OF MAGNETIZATION DENSITIES FROM POLARIZED NEUTRON-DIFFRACTION DATA, Acta crystallographica. Section A, Foundations of crystallography, 53, 1997, pp. 426-435
Citations number
41
Categorie Soggetti
Crystallography
ISSN journal
01087673
Volume
53
Year of publication
1997
Part
4
Pages
426 - 435
Database
ISI
SICI code
0108-7673(1997)53:<426:AGMMFM>2.0.ZU;2-8
Abstract
A general method for the model-free reconstruction of magnetization de nsities 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 ali gnment (either natural or induced) from polarized neutron diffraction experiments. The technique is illustrated for the purely organic ferro magnet, l-2-p-(nitrophenyl)-3-oxido-4,5-dihydroimidazolium 1-oxyl.