Interface Structure and Radiation Damage Resistance in Cu-Nb Multilayer Nanocomposites
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We use atomistic simulations to show that upon removal or insertion of atoms, misfit dislocations in Cu-Nb interfaces shift between two adjacent planes, forming pairs of extended jogs. Different jog combinations give rise to interface structures with unlike densities but nearly degenerate energies, making Cu-Nb interfaces virtually inexhaustible sinks for radiation-induced point defects and catalysts for efficient Frenkel pair recombination.
author list (cited authors)
Demkowicz, M. J., Hoagland, R. G., & Hirth, J. P.