Polarization periodicity in the B1 columnar phase determined by resonant x-ray scattering

Autor: Folcia, C.L., Ortega, J., Etxebarria, J., Pan, Li Dong, Wang, Shun, Huang, C.C., Ponsinet, V., Barois, P., Pindak, R., Gimeno, N.
Přispěvatelé: Fisica de la Materia Condensada, Facultaad de Ciencia y Tecnologia, Bilbao, Fisica Aplicada II, Facultad de Ciencia y Tecnologia, Bilbao, School of Physics and Astronomy [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Photon Sciences Directorate, Brookhaven National Laboratory [Upton, NY] (BNL), U.S. Department of Energy [Washington] (DOE)-UT-Battelle, LLC-Stony Brook University [SUNY] (SBU), State University of New York (SUNY)-State University of New York (SUNY)-U.S. Department of Energy [Washington] (DOE)-UT-Battelle, LLC-Stony Brook University [SUNY] (SBU), State University of New York (SUNY)-State University of New York (SUNY), Quimica Organica, University of Zaragoza - Universidad de Zaragoza [Zaragoza]
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2011, 84 (010701), pp. 1-5. ⟨10.1103/PhysRevE.84.010701⟩
ISSN: 1539-3755
1550-2376
DOI: 10.1103/PhysRevE.84.010701⟩
Popis: 5 pages; International audience; We report structural results that evidence the polarization distribution of the blocks in the columnar phase of an achiral bent-core liquid crystal. The study was performed using resonant x-ray diffraction at the sulfur K edge on oriented samples aligned on substrates. The extra periodicity is revealed through the violation of the systematic extinction rule of the structural symmetry group along the experimentally accessible diffraction direction. Further data obtained from the polarization analysis of a resonant reflection give information concerning the transition mechanism between B1 and B2 phases.
Databáze: OpenAIRE
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