journal menuforthcoming articles
The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section A: Foundations and Advances.
See also Forthcoming articles in all IUCr journals.
research papersresearch papersresearch papersCrystal symmetry for incommensurate helical and cycloidal modulations
A classification of the symmetry of magnetic modulations is presented. Helical magnetic ordering is possible only in magnetic superspace groups with proper rotations only, i.e. from classes 1, 2, 222, 4, 422, 3, 32, 6 and 622. Cycloidal modulations are possible in groups from crystal classes 1, 2, m and mm2.
research papersresearch papersSymmetry relations in wurtzite nitrides and oxide nitrides and the curious case of Pmc21
Binary and multinary nitrides in a wurtzitic arrangement are very interesting semiconductor materials. The group–subgroup relationship between the different structural types is established.
