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- Title
Crystal symmetry for incommensurate helical and cycloidal modulations.
- Authors
Fabrykiewicz, Piotr; Przeniosło, Radosław; Sosnowska, Izabela
- Abstract
A classification of magnetic superspace groups compatible with the helical and cycloidal magnetic modulations is presented. Helical modulations are compatible with groups from crystal classes 1, 2, 222, 4, 422, 3, 32, 6 and 622, while cycloidal modulations are compatible with groups from crystal classes 1, 2, m and mm2. For each magnetic crystal class, the directions of the symmetry‐allowed (non‐modulated) net ferromagnetic moment and electric polarization are given. The proposed classification of superspace groups is tested on experimental studies of type‐II multiferroics published in the literature.
- Subjects
MAGNETIC crystals; CRYSTAL symmetry; MULTIFERROIC materials
- Publication
Acta Crystallographica. Section A, Foundations & Advances, 2021, Vol 77, Issue 2, p160
- ISSN
2053-2733
- Publication type
Article
- DOI
10.1107/S205327332100111X