Open AccessExperimental study on self-organized hexagonal superlattice pattern in dielectric barrier discharge in argon/air
Author(s) -
Lifang Dong,
Wanyi Xie,
Zhao Hai-Tao,
Weili Fan,
Yafeng He,
Hong Xiao
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.4806
Subject(s) - superlattice , materials science , condensed matter physics , pattern formation , hexagonal crystal system , dielectric , electrode , optoelectronics , physics , crystallography , chemistry , genetics , biology , quantum mechanics
A new type of hexagonal superlattice pattern is observed under three different boundary conditions by using a dielectric barrier discharge device with water electrode. The power spectrum of hexagonal superlattice pattern and its angular distributions are shown. The phase diagram of the hexagonal superlattice pattern as a function of air concentration and applied voltage is obtained. The correlation measurements indicate that the hexagonal superlattice pattern is an interllacing of two different transient sublattices. The selection of pattern formation in quadrangular boundary with different area is studied. It is found that the hexagonal superlattice pattern is a typical type of nonlinear self-organized pattern, and the formation of square superlattice pattern is dependent upon the boundary conditions.