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- Title
Noise induced effects at nano-structured thin films growth during deposition in plasma-condensate devices.
- Authors
Kharchenko, V. O.; Dvornichenko, A. V.; Kharchenko, D. O.
- Abstract
We perform a comprehensive study of noise-induced effects in a stochastic model of reaction-diffusion type, describing nano-structured thin 1lms growth at condensation. We introduce an external 2ux of adsorbate between neighbour monoatomic layers caused by the electrical 1eld presence near substrate in plasma-condensate devices. We take into account that the strength of the electric 1eld 2uctuates around its mean value. We discuss a competing in2uence of the regular and stochastic parts of the external 2ux onto the dynamics of adsorptive system. It will be shown that the introduced 2uctuations induce 1rst-order phase transition in a homogeneous system, govern the pattern formation in a spatially extended system; these parts of the 2ux control the dynamics of the patterning, spatial order, morphology of the surface, growth law of the mean size of adsorbate islands, type and linear size of surface structures. The in2uence of the intensity of 2uctuations onto scaling and statistical properties of the nano-structured surface is analysed in detail. This study provides an insight into the details of noise induced effects at pattern formation processes in anisotropic adsorptive systems.
- Subjects
THIN films; SURFACE structure; BOSE-Einstein condensation; PHASE transitions; NOISE; SURFACE morphology; ADSORBATES
- Publication
Condensed Matter Physics, 2020, Vol 23, Issue 3, p1
- ISSN
1607-324X
- Publication type
Article
- DOI
10.5488/CMP.23.33001