TRAVELING-WAVE FRAGMENTS IN ANISOTROPIC EXCITABLE MEDIA

被引：30

作者：

MERTENS, F ^{[1
]}

GOTTSCHALK, N ^{[1
]}

BAR, M ^{[1
]}

EISWIRTH, M ^{[1
]}

MIKHAILOV, A ^{[1
]}

机构：

[1] UNIV HANNOVER, INST PHYS CHEM & ELEKTROCHEM, D-30167 HANNOVER, GERMANY

来源：

PHYSICAL REVIEW E | 1995年 / 51卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.51.R5193

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：

Experiments with an anisotropic chemical excitable medium-a catalytic chemical reaction on a single crystal surface-reveal a kind of stable wave pattern representing single traveling-wave fragments. Their existence is attributed to the presence of a strong state-dependent diffusion anisotropy in the medium. A simple theory of traveling fragments setting general conditions for their observation is proposed. Its conclusions are confirmed by numerical simulations of a reaction-diffusion model. Our analysis suggests that traveling-wave fragments are a general property of excitable media with strong state-dependent anisotropy. © 1995 The American Physical Society.

引用

页码：R5193 / R5196

页数：4

共 18 条

[1] SOLITARY-WAVE PHENOMENA IN AN EXCITABLE SURFACE-REACTION [J].

BAR, M ;

EISWIRTH, M ;

ROTERMUND, HH ;

ERTL, G .

PHYSICAL REVIEW LETTERS, 1992, 69 (06) :945-948

[2]

EISWIRTH M, 1995, CHEM WAVES PATTERNS, P447

[3] A UHV-COMPATIBLE PHOTOELECTRON EMISSION MICROSCOPE FOR APPLICATIONS IN SURFACE SCIENCE [J].

ENGEL, W ;

KORDESCH, ME ;

ROTERMUND, HH ;

KUBALA, S ;

VONOERTZEN, A .

ULTRAMICROSCOPY, 1991, 36 (1-3) :148-153

[4] CHEMICAL WAVES IN MEDIA WITH STATE-DEPENDENT ANISOTROPY [J].

GOTTSCHALK, N ;

MERTENS, F ;

BAR, M ;

EISWIRTH, M ;

IMBIHL, R .

PHYSICAL REVIEW LETTERS, 1994, 73 (25) :3483-3486

[5]

IVANITSKY GR, 1980, SOV SCI REV D, V2, P280

[6] EXPERIMENTAL-OBSERVATION OF SELF-REPLICATING SPOTS IN A REACTION-DIFFUSION SYSTEM [J].

LEE, KJ ;

MCCORMICK, WD ;

PEARSON, JE ;

SWINNEY, HL .

NATURE, 1994, 369 (6477) :215-218

[7] ONE-DIMENSIONAL REACTIVITY IN CATALYSIS STUDIED WITH THE SCANNING TUNNELING MICROSCOPE [J].

LEIBSLE, FM ;

MURRAY, PW ;

FRANCIS, SM ;

THORNTON, G ;

BOWKER, M .

NATURE, 1993, 363 (6431) :706-709

[8] SQUARE CHEMICAL WAVES IN THE CATALYTIC REACTION NO+H-2 ON A RHODIUM(110) SURFACE [J].

MERTENS, F ;

IMBIHL, R .

NATURE, 1994, 370 (6485) :124-126

[9] FORMATION OF SHOCKS AND BREAKUP OF WAVE PATTERNS IN ANISOTROPIC EXCITABLE MEDIA [J].

MIKHAILOV, A .

PHYSICAL REVIEW E, 1994, 49 (06) :5875-5877

[10] COMPLEX DYNAMICS OF SPIRAL WAVES AND MOTION OF CURVES [J].

MIKHAILOV, AS ;

DAVYDOV, VA ;

ZYKOV, VS .

PHYSICA D, 1994, 70 (1-2) :1-39

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