Calculus of Variations and Geometric Measure Theory
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R. Alicandro - G. Lazzaroni - M. Palombaro

Derivation of a rod theory from lattice systems with interactions beyond nearest neighbours

created by lazzaroni on 30 Nov 2016
modified on 21 Dec 2016



Inserted: 30 nov 2016
Last Updated: 21 dec 2016

Year: 2016

Preprint SISSA 58$/$2016$/$MATE


We study continuum limits of discrete models for (possibly heterogeneous) nanowires. The lattice energy includes at least nearest and next-to-nearest neighbour interactions: the latter have the role of penalising changes of orientation. In the heterogeneous case, we obtain an estimate on the minimal energy spent to match different equilibria. This gives insight into the nucleation of dislocations in epitaxially grown heterostructured nanowires.


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