Diffusion-induced growth and morphological stability of a two-dimensional cavity in an adatomic monolayer on the crystal surface

Autor:	A. V. Koropov
Rok vydání:	2011
Předmět:	Chemistry Physics::Optics Radius Molecular physics Surfaces Coatings and Films Crystal Condensed Matter::Materials Science Crystallography Amplitude Vacancy defect Monolayer Physics::Atomic and Molecular Clusters Physics::Accelerator Physics Diffusion (business) Deformation (engineering) Thin film
Zdroj:	Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. 5:780-786
ISSN:	1819-7094 1027-4510
DOI:	10.1134/s102745101108009x
Popis:	Diffusion-induced growth of a two-dimensional cavity (a pore) in a monolayer of adsorbed atoms (adatoms) on the crystal surface is considered in the case of the vacancy mechanism for diffusion in the monolayer. In the case in which the cavity radius is smaller than the typical diffusion length of vacancies, the stability of the growing cavity against arbitrary small perturbations of its shape is analyzed with the boundary kinetics of vacancies at the cavity boundary taken into account. Threshold cavity radii are found. Exceeding these radii leads to an increase in both the amplitude of the shape distortion and the amplitude of the relative deformation of the cavity shape.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1408544cc38a8a2cc0f8a77ad129d66 https://doi.org/10.1134/s102745101108009x Zobrazit plný text záznamu Full text from SpringerLink