Multifractal Structure of the Surface of Cu/Co Superlattices

Measurements of the roughness parameters and fractal dimension of the surface of Cu/Co superlattices are carried out by scanning tunneling microscopy. The fractal analysis of the superlattice surface shows that the fractal-dimension curve can be divided into two sections with different slopes depend...

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Bibliographic Details
Published in:Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2021-05, Vol.15 (3), p.436-440
Main Authors: Grigorov, I. G., Romashev, L. N.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Fractal analysis
Fractal geometry
Fractals
Materials Science
Morphology
Parameters
Roughness
Scanning tunneling microscopy
Superlattices
Surfaces and Interfaces
Thin Films
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Summary:Measurements of the roughness parameters and fractal dimension of the surface of Cu/Co superlattices are carried out by scanning tunneling microscopy. The fractal analysis of the superlattice surface shows that the fractal-dimension curve can be divided into two sections with different slopes depending on the scanning step. On the fractal-dimension curve, two intervals can be distinguished that define groups of objects that are heterogeneous in morphology: the fractal dimension of the nanostructure grains and the fractal dimension of the surface microrelief. In this regard, the parameters of the root-mean-square roughness of the surface relief and the fractal dimension of the surface morphology can be used as quantitative parameters for analyzing the structural features of the surface of superlattices at the final stage of their synthesis.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451021030101