Extended Data Fig. 6: Shuffle twinning of GeSe under tensile strain.
From: Reversible shuffle twinning yields anisotropic tensile superelasticity in ceramic GeSe
a, The structure of GeSe before twinning (left), after twinning (right), and at the energy saddle point in the transformation pathway (middle) for a strain of 7% along the zigzag direction. Ge and Se atoms are colored in purple and green, respectively. b, The local bond switching in the structures corresponding to (a). c, Structural evolution of the twin domains (marked by red lines) in the GeSe model during loading and unloading simulation, corresponding to the data points in Fig. 3b in the main text.
