One dimensional model of strained epitaxy of a binary alloy

Hugues Dreysse (1) , Vasyl Ivanovych Tokar (1, 2)

1 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
2 Theoretical Physics

We discuss the self-assembly of monatomic chains composed of atoms of two kinds on a periodic substrate. We assume that there exists small positive misfit between the average atomic diameter of the deposited atoms and the substrate lattice parameter. This may cause the chain size calibration. Our model calculations show that if the interatomic interactions are of ordering type, at low temperature the distribution of chain lengths at thermal equilibrium is more strongly peaked around the optimum length than in the case of chains composed from identical atoms.

Mots clés: Physical Sciences

Hugues Dreysse, Vasyl Ivanovych Tokar. One dimensional model of strained epitaxy of a binary alloy. Philosophical Magazine, 2008, 88 (18-20), pp.2747-2753. ⟨10.1080/14786430802322214⟩. ⟨hal-00513936⟩