Influence of the elastic deformations on the form factor of polyhedral nanocrystals: the illustrative example of the pseudomorphic inclusion

Bernard Croset 1
1 INSP-E6 - Physico-chimie et dynamique des surfaces
INSP - Institut des Nanosciences de Paris
Abstract : Using an analytically tractable example, the pseudomorphic inclusion, this article examines the influence of elastic deformations on the form factor of polyhedral nanocrystals. A control parameter, the total amplitude of the variation of the complex density phase, is identified and it is shown that for low enough deformations the characteristic asymptotic behaviours as a function of the scattering vector associated with the polyhedral crystal shape are preserved, leading to a strong contrast in the dependence of the form factor on orientation. Using the sections method, it is explained why these results can be generalized to more realistic elastic situations.
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Submitted on : Wednesday, April 3, 2019 - 8:47:48 AM
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Bernard Croset. Influence of the elastic deformations on the form factor of polyhedral nanocrystals: the illustrative example of the pseudomorphic inclusion. Journal of Applied Crystallography, International Union of Crystallography, 2019, 52 (2), pp.387-393. ⟨10.1107/S1600576719002553⟩. ⟨hal-02083409⟩

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