The adjunction of antiidentity operations to point groups, including a derivation of the magnetic point groups
Abstract
The theoretical basis for an iterative procedure for adjoining antiidentity operations to point groups is presented. The theory is stated in a general context and is then applied to point groups yielding the crystallographic point groups from the proper crystallographic point groups and yielding the antisymmetry groups (including the magnetic point groups) from the crystallographic point groups.
A method for constructing point groups that describe the symmetry of an object having a number of two-mode properties (positive-negative, black-white etc.) is discussed. Finally, a physical interpretation of the crystallographic point groups involved in the construction of a given magnetic point group is presented.
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Artikel in diesem Heft
- The crystal structure of germanium dibromide*
- Quadratischer elektrostriktiver Tensor des rhombischen Calciumformiats
- Die Kristallstruktur von Fe2Si, ihre Verwandtschaft zu den Ordnungsstrukturen des α-(Fe,Si)-Mischkristalls und zur Fe5Si3-Struktur
- The behaviour of triplet relationships in the case of a small number of atoms in the unit cell
- The adjunction of antiidentity operations to point groups, including a derivation of the magnetic point groups
- Clinoptilolite: the distribution of potassium atoms and its role in thermal stability
- Die Kristallstruktur von (+)- und (−)-Ru[C6H5(CH3)PCH2CH2,P(C6H5)CH3],Cl2
- Zur Kompensation der elektrostatischen Kräfte bei der Messung elektrooptischer Effekte
- Tables of the Σ1 relationships: triclinic, monoclinic and orthorhombic space groups
- The crystal structure of C.I. Pigment Red 6, 4-chloro-2-nitrophenylazo-2-naphthol
- Madelung constants for millerite-type structures and for high-pressure GeP-type structures: a contribution to the crystal chemistry of A[5]B[5] compounds
- The crystal structures of α and γ SrUO4
- On the use of Guinier-Hägg film data for structure analysis
