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Figure 1
(a) A mixed dislocation of Burgers vector [{\bf B} = (0,{\overline 1},1)] showing the edge part on the plane (x,y) and the screw part along z. (b) The same object analysed as a two-dimensional tiling is a partial dislocation bounded by a planar defect of vertically oriented rhombi; as shown in (a), this defect is a dislocation of the [{\bb Z}]-module generated by the projection of the three-dimensional simple cubic lattice onto the (x,y) plane: it is a module dislocation. (c) Generating a similar module dislocation but from the cut of a four-dimensional hypercubic crystal makes the area's overall relief much more difficult to grasp.

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ISSN: 2053-2733
Volume 73| Part 6| November 2017| Pages 427-437
https://doi.org/10.1107/S2053273317013882
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