title: Stability of a Screw Dislocation in a ⟨011⟩ Copper Nanowire.
abstract: The stability of a screw dislocation in a free ⟨011⟩ copper nanowire is investigated using atomistic calculations. This study reveals a strong anisotropy of the Eshelby potential well (EPW) that traps the dislocation. Moreover the depth of the EPW is found to vanish when the radius of the nanowire decreases. It is demonstrated that this behavior is due to the dissociated state of the dislocation.
authors: Aix Marseille Université, CNRS, IM2NP UMR 7334, 13397 Marseille, France.
authors: Jean-Marc
authors: JM
authors: Roussel
authors: Aix Marseille Université, CNRS, IM2NP UMR 7334, 13397 Marseille, France.
authors: Marc
authors: M
authors: Gailhanou