Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10636837 | Solid State Sciences | 2005 | 11 Pages |
Abstract
Application of symmetry analysis method to description of local tensors is presented in this paper. The method is based on the decomposition of full representation of the space group, calculated for a given wave vector kâ, into its irreducible representations (IR). The final ordering pattern is built up as a linear combination of basis vectors (BV) of the irreducible representations. The conditions imposed on the final solution by the quadrupolar moment tensor requirements are analyzed in detail. Here the method is applied to quadrupolar moment ordering of Ce atoms in CeB6. All possible types of quadrupolar ordering are calculated, together with their resulting final symmetry groups. An additional symmetry analysis is also carried out to determine the possible patterns of atomic displacements of the neighboring B atoms, which are consistent with the symmetry imposed by the quadrupolar ordering.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Wieslawa Sikora, Franciszek Bialas, Lucjan Pytlik, Janusz Malinowski,