DYNAMICS OF DISLOCATIONS IN HEXAGONAL PATTERNS

Authors
RABINOVICH MI TSIMRING LS
Citation
Mi. Rabinovich et Ls. Tsimring, DYNAMICS OF DISLOCATIONS IN HEXAGONAL PATTERNS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 49(1), 1994, pp. 180000035-180000038
Citations number
15
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
49
Issue
1
Year of publication
1994
Pages
180000035 - 180000038
Database
ISI
SICI code
1063-651X(1994)49:1<180000035:DODIHP>2.0.ZU;2-6
Abstract
The dynamics and interaction of dislocations of roll systems forming h exagonal patterns is studied numerically within a model of three reson antly coupled Newell-Whitehead-Segel equations. It is shown that an in dividual dislocation is driven away as a result of phase synchronizati on among roll patterns. Two dislocations with opposite topological cha rges belonging to different roll systems are attracted to each other a nd form a ''penta-hepta'' defect on the background of the perfect hexa gonal pattern, which is stable and motionless.