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Article

Misfit Dislocation loops in Hollow core-shell nanoparticles

Gutkin M., Kolesnikova A., Krasnitckii S., Romanov A., Shalkovsky A.

A theoretical model is suggested to determine the critical conditions for generation of circular prismatic misfit dislocation loops in hollow core-shell nanoparticles. Based on a strict solution of the linear elasticity boundary-value problem for a circular prismatic dislocation loop in a free-surface shell, we examine the loop formation energy in the nanoparticle and show a potential opportunity to fabricate hollow coherently bonded, i.e. dislocation-free, core-shell nanoparticles by using thin-wall shells with inner-to-outer radii ratio larger than 0.8 as supporting cores.