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Physics & Astronomy

Department Features

Department Features

Current research and activities in the Department of Physics and Astronomy.

Group theory aids the study of crystal distortions
In crystalline solids, phase transitions that result in the loss of part (but not all) of the crystallographic symmetry, are known as distortions. ISODISPLACE is a group-theoretical tool that can be used to generate and interactively visualize virtually any crystal distortion involving atomic displacements or lattice strains. It also provides a unique and exhaustive classification of the distortion modes available to any three-dimensional crystal structure. ISODISPLACE was introduced in 2005 by Branton Campbell, Harold Stokes, and undergraduate student David Tanner at the triennial IUCr Congress in Florence Italy in 2005. J. Appl. Cryst. 39, 607-614 (2006).

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