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Title: Flow birefringence in lyotropic mixtures in the isotropic phase

Abstract

The flow-induced birefringence ([delta][ital n]) in lyotropic mixtures in the isotropic phase (ISO) was measured by means of optical techniques. As a function of temperature, the ISO is surrounded by two lamellar (LAM) phases. The shear flow produced by a perturbation in ISO induces a birefringent phase, which relaxes back to ISO with a typical relaxation time [tau]. [tau] increases near the transition to the more ordered LAM phases, and the behavior of [tau] versus temperature indicates the existence of a virtual nematic phase in the isotropic domain.

Authors:
;  [1]
  1. Instituto de Fisica, Universidade de Sao Paulo, Caixa Postal 20516, 01498-970-Sao Paulo, Sao Paulo (Brazil)
Publication Date:
OSTI Identifier:
6702420
Resource Type:
Journal Article
Journal Name:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)
Additional Journal Information:
Journal Volume: 51:1; Journal ID: ISSN 1063-651X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; LIQUID CRYSTALS; BIREFRINGENCE; RELAXATION TIME; CRYSTAL-PHASE TRANSFORMATIONS; DECANOLS; ISOTROPY; MICELLAR SYSTEMS; POTASSIUM COMPOUNDS; TEMPERATURE DEPENDENCE; X-RAY SPECTROSCOPY; ALCOHOLS; ALKALI METAL COMPOUNDS; CRYSTALS; FLUIDS; HYDROXY COMPOUNDS; LIQUIDS; ORGANIC COMPOUNDS; PHASE TRANSFORMATIONS; REFRACTION; SPECTROSCOPY; 665000* - Physics of Condensed Matter- (1992-)

Citation Formats

Fernandes, P R.G., and Figueiredo Neto, A M. Flow birefringence in lyotropic mixtures in the isotropic phase. United States: N. p., 1995. Web. doi:10.1103/PhysRevE.51.567.
Fernandes, P R.G., & Figueiredo Neto, A M. Flow birefringence in lyotropic mixtures in the isotropic phase. United States. https://doi.org/10.1103/PhysRevE.51.567
Fernandes, P R.G., and Figueiredo Neto, A M. 1995. "Flow birefringence in lyotropic mixtures in the isotropic phase". United States. https://doi.org/10.1103/PhysRevE.51.567.
@article{osti_6702420,
title = {Flow birefringence in lyotropic mixtures in the isotropic phase},
author = {Fernandes, P R.G. and Figueiredo Neto, A M},
abstractNote = {The flow-induced birefringence ([delta][ital n]) in lyotropic mixtures in the isotropic phase (ISO) was measured by means of optical techniques. As a function of temperature, the ISO is surrounded by two lamellar (LAM) phases. The shear flow produced by a perturbation in ISO induces a birefringent phase, which relaxes back to ISO with a typical relaxation time [tau]. [tau] increases near the transition to the more ordered LAM phases, and the behavior of [tau] versus temperature indicates the existence of a virtual nematic phase in the isotropic domain.},
doi = {10.1103/PhysRevE.51.567},
url = {https://www.osti.gov/biblio/6702420}, journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)},
issn = {1063-651X},
number = ,
volume = 51:1,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}