Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Doubly periodic instability pattern in a smectic-A liquid crystal
Stockholm University, Nordic Institute for Theoretical Physics (Nordita).
Show others and affiliations
2013 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 87, no 5, 050501- p.Article in journal (Refereed) Published
Abstract [en]

We report the observation of a doubly periodic surface defect pattern in the liquid crystal 8CB, formed during the nematic-smectic-A phase transition. The pattern results from the antagonistic alignment of the 8CB molecules, which is homeotropic at the surface and planar in the bulk of the sample cell. Within the continuum Landau-de Gennes theory of smectic liquid crystals, we find that the long period (approximate to 10 mu m) of the pattern is given by the balance between the surface anchoring and the elastic energy of curvature wall defects. The short period (approximate to 10 mu m) we attribute to a saddle-splay distortion, leading to a nonzero Gaussian curvature and causing the curvature walls to break up.

Place, publisher, year, edition, pages
American Physical Society , 2013. Vol. 87, no 5, 050501- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-91526DOI: 10.1103/PhysRevE.87.050501ISI: 000319118100001OAI: oai:DiVA.org:su-91526DiVA: diva2:634693
Funder
EU, FP7, Seventh Framework Programme, EuroMagnet II; 228043
Note

AuthorCount:5;

Available from: 2013-07-01 Created: 2013-06-28 Last updated: 2017-12-06Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Nordic Institute for Theoretical Physics (Nordita)
In the same journal
Physical Review E. Statistical, Nonlinear, and Soft Matter Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 34 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf