Open AccessTopological layered nanostructures with controlled functional characteristics induced by laser radiation on a solid surface
Author(s) -
С. М. Аракелян,
G. A. Evstyunin,
A. O. Kucherik,
D. N. Bukharov,
T. A. Khudaberganov,
S. V. Zhirnova,
E. L. Shamanskaya,
O. Ya. Butkovsky
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/896/1/012133
Subject(s) - crystallization , cellular automaton , materials science , cluster (spacecraft) , fractal , radiation , surface (topology) , topology (electrical circuits) , laser , morphology (biology) , diffusion , biological system , nanostructure , chemical physics , nanotechnology , optics , physics , computer science , geometry , mathematics , thermodynamics , algorithm , mathematical analysis , combinatorics , biology , programming language , genetics
Models of the formation of roughnesses on the surface of materials and the movement of distributed flows in their presence are considered, which ultimately determines the functional properties of such topological materials of different compositions induced by laser radiation. The paper also presents simulation of crystallization of complex structures from a melt with an analysis of the morphology of the resulting crystalline structures, and shows examples of the occurrence of fractal dendritic formations. Different types of morphology are induced depending on the energy of the laser radiation and the duration of the heating; determining the final state of objects with the desired functional and structural characteristics. Using the methods of cellular automata, the models were obtained for both the distribution of crystallization centers and the growth of an individual cluster under the influence of diffusion mechanisms. The relationship between the resulting morphology and the modified parameters of the models used is analyzed.