Stacking fault tetrahedra (SFTs) are ubiquitous vacancy‐cluster defects in face‐centred cubic (FCC) metals, formed under conditions of plastic deformation, quenching or irradiation. Each SFT comprises ...
Settling a half century of debate, researchers have discovered that tiny linear defects can propagate through a material faster than sound waves do. These linear defects, or dislocations, are what ...