J. S. van Wieringen

TL;DR: In this article, the magnetic and electrical properties of Fe1−xCuxCr2S4 were interpreted on the basis of a model for sulphospinels given by Lotgering and Van Stapele, with the additional assumption that the Fe2+ levels are situated in the energy gap between the valence and conduction band.

TL;DR: The crystal structure, the magnetic properties, and the phase relations of cerium-iron compounds have been investigated in this article, where lattice constants are given for CeFe2, α-Ce2Fe17, and β-ce2fe17.

TL;DR: From X-ray diffraction and Mossbauer measurements on BaFe 12 O 19 single crystals, it was concluded that the iron on Fe(2) sites oscillates between two positions on either side of a plane through three of its oxygen neighbours.

TL;DR: In this paper, the ionic radii of the iron group elements do not decrease monotonically from Ca towards Zn but show maxima at configurations d4, d5 and possibly d9, d10.

TL;DR: In this paper, it was shown that a single particle is unable to give a “recoilless” Mossbauer transition; hence, it should depend on the degree of packing.