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Nematic-Smectic a Phase-Transition Under Shear Flow

Published online by Cambridge University Press:  21 February 2011

R. F. Bruinsma  and
C. R. Safinya
R. F. Bruinsma
Affiliation:
University of California, Los Angeles, Physics Dept., Los Angeles, CA 90024
C. R. Safinya
Affiliation:
Exxon Research and Engineering Comp., Annandale, NJ 08801
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Abstract

We discuss the effect of shear flow on the nematic to smectic A phase transition. The non-Newtonian flow properties (shear thinning and normal stress) ire correlated with the distortions of the structure-factor S(q). As a function of the Deborah number, we find first a deformation of S(q) and, beyond a critical Deborah number, highly distorted, one-dimensional fluctuations. The suppression of fluctuations by shear flow raises the critical temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 177: Symposium V – Macromolecular Liquids , 1989 , 153
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1) Evans, D.J., Hanley, H.J.N. and Hess, S., Physics Today, Jan.1984, pg.26 and references therein.Google Scholar
2) Gennes, P.G. de, The Physics of Liquid Crystals, (Oxford University Press, London, 1974)Google Scholar
3) Garland, C.W. et al., Phys.Rev. A 27, 3234 (1988) and references therein.Google Scholar
4) Bruinsma, R. and Safinya, C.R., preprintGoogle Scholar
5) Mclillan, W.L., Phys. Rev. A 7 1419 (1973)Google Scholar
6) Onuki, A. and Kawasaki, K., Annals of Physics 121, 456 (1979)Google Scholar
7) Gennes, P.G. de, sol. stat. comm. 10 753 (1972)Google Scholar