Thermal Stability of Black Aluminum Films and Growth of Aluminum Nanowires from Mechanical Defects on the Film Surface during Annealing

Spiral‐shaped aluminum nanowires grow from scratches and abrasions on the surface of black aluminum film after heating the film in a vacuum. The growth of nanowires is driven by the stress‐induced migration of aluminum atoms. The mechanism of nanowire growth is studied in article number 2100467 by Marina Romanova and co‐workers. – This article belongs to the Special Section “Defect‐Induced Effects in Nanomaterials” (see the Guest Editorial, article number 2200283, by Nikolai A. Sobolev et al.) in this issue.