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Columnar phases of three-fold molecular structures.
MedLine Citation:
PMID:  12636517     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We study the occurrence of both positional and helical orders, for three-fold symmetric flat molecules in a columnar liquid crystal phase D(hd). Working in the group-theoretical Landau's framework, we identify a set of three order parameters giving rise to supercells of intercalated column with helical order and opposite helicities, as observed experimentally. The first-order nature of the transition is also discussed. The degrees of freedom introduced give rise to various other phases, including a new type, having helical order but no positional order along the columns.
Authors:
Jean-Guy Demers; Alain Caillé
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Publication Detail:
Type:  Journal Article     Date:  2003-01-30
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  67     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-03-14     Completed Date:  2003-06-30     Revised Date:  2003-11-04    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  011707     Citation Subset:  -    
Affiliation:
Département de Physique, Université de Montréal, Case Postale 6128, Succursale Centre-ville, Montréal, Quebec, Canada H3C 3J7.
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