Transition properties of the soft-mode turbulence in the homeotropic electro convection superimposing magnetic fields

Jong Hoon Huh, Yoshiki Hidaka, Shoichi Kai

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The experimental study on transition processes of the spatio-temporal chaos (STC) as well as periodic patterns in homeotropically aligned nematic liquid crystals is reported under superimposing magnetic fields with electric fields. The strong dependence of the threshold for STC on the strength of magnetic fields is observed above certain normalized voltage εth, where the two types of STC are found out below and beyond the characteristic value of the magnetic field H* = 620 G. The periodic patterns were observed for the normalized voltage ε below εth. Below H* the soft-mode turbulence appears due to the Goldstone mode related to a continuous rotational-symmetry which can be controlled by the application of H. Beyond H*, the conventional STC called defect turbulence, which is similar to STC in the planar system, is observed.

Original languageEnglish
Pages (from-to)1948-1954
Number of pages7
Journaljournal of the physical society of japan
Volume67
Issue number6
DOIs
Publication statusPublished - Jan 1 1998

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chaos
convection
turbulence
magnetic fields
electric potential
liquid crystals
thresholds
electric fields
defects
symmetry

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Transition properties of the soft-mode turbulence in the homeotropic electro convection superimposing magnetic fields. / Huh, Jong Hoon; Hidaka, Yoshiki; Kai, Shoichi.

In: journal of the physical society of japan, Vol. 67, No. 6, 01.01.1998, p. 1948-1954.

Research output: Contribution to journalArticle

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