BLUE PHASES IN THE PRESENCE OF FLUCTUATIONS - A ONE-STAR ANALYSIS

Citation
J. Englert et al., BLUE PHASES IN THE PRESENCE OF FLUCTUATIONS - A ONE-STAR ANALYSIS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 301, 1997, pp. 397-401
Citations number
11
Categorie Soggetti
Crystallography
ISSN journal
1058725X
Volume
301
Year of publication
1997
Pages
397 - 401
Database
ISI
SICI code
1058-725X(1997)301:<397:BPITPO>2.0.ZU;2-B
Abstract
Conventional mean-field theory renders the structure of the cubic blue phases correctly, brit not their position on the phase diagram. Also it has not been possible to suppress the artificial body centered cubi c structure O-5. Within the framework of the weak crystallization theo ry we extend the Landau-Ginzburg-de Gennes free energy by including or der parameter fluctuations. Calculations that involve one star of wave vectors destabilize the formerly dominant O-5 structure.