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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Weirdest Martensite: Smectic Liquid Crystal Microstructure and Weyl-Poincare Invariance

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Author(s):
Liarte, Danilo B. [1, 2] ; Bierbaum, Matthew [2] ; Mosna, Ricardo A. [3] ; Kamien, Randall D. [4] ; Sethna, James P. [2]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Phys, BR-05314970 Sao Paulo, SP - Brazil
[2] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14853 - USA
[3] Univ Estadual Campinas, Dept Matemat Aplicada, BR-13083859 Campinas, SP - Brazil
[4] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 - USA
Total Affiliations: 4
Document type: Journal article
Source: Physical Review Letters; v. 116, n. 14 APR 4 2016.
Web of Science Citations: 2
Abstract

Smectic liquid crystals are remarkable, beautiful examples of materials microstructure, with ordered patterns of geometrically perfect ellipses and hyperbolas. The solution of the complex problem of filling three-dimensional space with domains of focal conics under constraining boundary conditions yields a set of strict rules, which are similar to the compatibility conditions in a martensitic crystal. Here we present the rules giving compatible conditions for the concentric circle domains found at two-dimensional smectic interfaces with planar boundary conditions. Using configurations generated by numerical simulations, we develop a clustering algorithm to decompose the planar boundaries into domains. The interfaces between different domains agree well with the smectic compatibility conditions. We also discuss generalizations of our approach to describe the full three-dimensional smectic domains, where the variant symmetry group is the Weyl-Poincare group of Lorentz boosts, translations, rotations, and dilatations. (AU)

FAPESP's process: 13/09357-9 - Physics and geometry of spacetime
Grantee:Alberto Vazquez Saa
Support Opportunities: Research Projects - Thematic Grants