Fig. 4

Initial elastic fields in a \((10\bar {1}{2})\) twin domain. The twin is built with a dipole of disclination loops (red lines). (a,b) Stress field T₂₃ and elastic dilatation/contraction in a slice parallel to the shear direction, the frame is shown on the left. (c,d) Stress fields T₂₃ and T₁₂ in a slice normal to the shear direction, the frame is shown on the left