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Visualization of Time-Reversal Symmetry in Magnetic Point Groups

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Abstract

The direct visualization of crystallographic and magnetic point group symmetry by means of computer graphics simplifies the teaching of point group symmetry at the undergraduate and graduate levels. Still images and animated movies for all 32 crystallographic point groups, and for the 122 magnetic point groups, are presented. For each point group, the action of the symmetry operators on scalar and pseudo-scalar objects, as well as on polar and axial vectors, is represented as a three-dimensional rendered image. All images and movies are made available as supplementary educational material via a dedicated web site.

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Acknowledgments

The point group representations as well as the accompanying web site (http://mpg.web.cmu.edu) were developed with financial support from the National Science Foundation, Award Nos. DMR-0404836 and DMR-0809048. The author thanks D. Laughlin, M. McHenry, A. Petford-Long, C. Phatak, and B. Clothier for stimulating discussions. In addition, the anonymous reviewers are acknowledged for helpful suggestions.

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Correspondence to Marc De Graef.

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Manuscript submitted December 1, 2009.

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De Graef, M. Visualization of Time-Reversal Symmetry in Magnetic Point Groups. Metall Mater Trans A 41, 1321–1329 (2010). https://doi.org/10.1007/s11661-010-0171-0

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