SOLITARY-WAVE PHENOMENA IN AN EXCITABLE SURFACE-REACTION

被引：93

作者：

BAR, M

EISWIRTH, M

ROTERMUND, HH

ERTL, G

机构：

[1] Fritz-Haber-Institut, Max-Planck-Gesellschaft, D-1000 Berlin 33

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.69.945

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A simple reaction-diffusion model for the CO oxidation on Pt(110), exhibiting among other features bistability and oscillations, is studied in an excitable parameter region where traveling solitary pulses with high O coverage may be formed on an otherwise CO-covered surface. If it is assumed that small patches are structurally imperfect, effects of wave splitting of a pulse, as well as partial annihilation and solitonlike behavior, result upon collision of two pulses, in agreement with experimental observations.

引用

页码：945 / 948

页数：4

共 18 条

[1]

BAR M, IN PRESS SURF SCI

[2] NONLINEAR DYNAMICS IN THE COOXIDATION ON PT SINGLE-CRYSTAL SURFACES [J].