Eur. Phys. J. Appl. Phys.
Volume 38, Number 1, April 2007
|Page(s)||41 - 46|
|Section||Magnetism and Superconductivity|
|Published online||22 February 2007|
Symmetry of magnetic structures: the case of CeAl2
Département de Recherche Fondamentale sur la Matière
Commissariat à l'Énergie Atomique, 17 avenue des Martyrs, 38054 Grenoble
Cedex 9, France
2 Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, 19104, USA
Corresponding author: firstname.lastname@example.org
Accepted: 12 January 2007
Published online: 22 February 2007
This article presents a group-theoretical investigation of an incommensurate magnetic structure in the case where the crystal structure is centrosymmetric while the structure vector k is not conserved by inversion. A first method starts with the conventional group-theoretical treatment taking into account the transformations which conserve k and then combines the solutions to obtain a centrosymmetric and real magnetization. A second method includes inversion in the group-theoretical treatment, for instance by introducing the complex conjugation operator and corepresentations. The general theory is applied to CeAl2 with the scope of improving the knowledge of its magnetic structure.
PACS: 61.12.Ld – Neutron diffraction / 61.50.Ah – Theory of crystal structure, crystal symmetry; calculations and modeling / 75.50.Ee – Antiferromagnetics
© EDP Sciences, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.