Nanosize pattern formation in overdamped stochastic reaction-diffusion systems with interacting adsorbate

被引：24

作者：

Kharchenko, Vasyl O. ^{[1
,2
]}

Kharchenko, Dmitrii O. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Appl Phys, UA-40000 Sumy, Ukraine

[2] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

PHYSICAL REVIEW E | 2012年 / 86卷 / 04期

关键词：

SELF-ORGANIZATION; HYPERBOLIC MODEL; GROWTH; NANOSTRUCTURES; SURFACES; EPITAXY;

D O I：

10.1103/PhysRevE.86.041143

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We study overdamped stochastic model describing adsorption or desorption processes with nonequilibrium chemical reactions on the surface. It is shown that internal noise satisfying the fluctuation-dissipation relation at small intensities governs transitions between ordered thermodynamical dense and diluted phases. These phase transitions are characterized by an increase of fluctuations of the coverage filed and correlation radius of spatial modulation. At large noise intensity a transition towards disordered phase with chaotic spatial configuration is realized. We have shown that organized stationary patterns are of nanometer range. We define that both period of stationary structures and corresponding correlation radius depend on the noise intensity.

引用

页数：12

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