Magnetically-ordered quasicrystals: Enumeration of spin groups and calculation of magnetic selection rules

Details Magnetically-ordered quasicrystals: Enumeration of spin groups and calculation of magnetic selection rules Magnetically-ordered quasicrystals: Enumeration of spin groups and calculation of magnetic selection rules

2003-04-29

arxiv.org/abs/cond-mat/0304669v2

Acta Crystallographica A 60 (2004) 167-178.

Physics

Condensed Matter

Materials Science

Contains 1 figure in color (Fig. 3 on page 16)

Scientific paper

We provide the details of the theory of magnetic symmetry in quasicrystals, which has previously only been outlined. We develop a practical formalism for the enumeration of spin point groups and spin space groups, and for the calculation of selection rules for neutron scattering experiments. We demonstrate the formalism using the simple, yet non-trivial, example of magnetically-ordered octagonal quasicrystals in two dimensions. In a companion paper we shall provide complete results for octagonal quasicrystals in three dimensions.

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