Effect of dispersed silica particles on the smectic-A–smectic-[formula presented] phase transition

Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Volumn 66, Issue 4, 2002, Pages 8-

  Kutnjak, Z ^a   Kralj, S ^a,b   Zumer S ^a,c  

^a JO EF STEFAN INSTITUTE   (Slovenia)

^b UNIVERSITY OF MARIBOR   (Slovenia)

^c UNIVERSITY OF LJUBLJANA   (Slovenia)

Author keywords

[No Author keywords available]

Indexed keywords

AEROGELS; HYDROPHILICITY; SILICA; SMECTIC LIQUID CRYSTALS; SPECTROSCOPIC ANALYSIS; SUPERCONDUCTING TRANSITION TEMPERATURE;

AEROSIL SURFACES; BOLTZMANN CONSTANT; DIELECTRIC SPECTROSCOPY; FRANK ELASTIC CONSTANT;

PHASE TRANSITIONS;

ARTICLE;

EID: 41349097254     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.66.041702     Document Type: Article

References (30)

1. Liquid Crystals in Complex Geometries Formed by Polymer and Porous Networks, edited by G.P. Crawford and S. Žumer (Taylor and Francis, London, 1996).
2. G.S. Iannacchione, C.W. Garland, J.T. Mang, and T.P. Rieker, Phys. Rev. E 58, 5966 (1998), and references therein.
3. P.G. de Gennes and J. Prost, The Physics of Liquid Crystals (Oxford University Press, Oxford, 1993).
4. M. Marinelli, A.K. Ghosh, and F. Mercuri, Phys. Rev. E 63, 061713 (2001).
5. A. Hourri, T.K. Bose, and J. Thoen, Phys. Rev. E 63, 051702 (2001).
6. B. Zhou, G.S. Iannacchione, C.W. Garland, and T. Bellini, Phys. Rev. E 55, 2962 (1997).
7. H. Haga and C.W. Garland, Phys. Rev. E 56, 3044 (1997).
8. S.L. Messieh, J. Werner, H. Schmalfuss, W. Weissflog, and H. Kresse, Liq. Cryst. 26, 535 (1999).
9. M. Marinelli, A.K. Ghosh, and F. Mercuri, Phys. Rev. E 63, 061713 (2001).
10. C.C. Retsch, I. McNulty, and G.S. Iannacchione, Phys. Rev. E 65, 032701 (2002).
11. D.J. Cleaver, S. Kralj, T.J. Sluckin, and M.P. Allen, in Liquid Crystals in Complex Geometries Formed by Polymer and Porous Networks, edited by G.P. Crawford and S. Žumer (Taylor and Francis, London, 1996), p. 467.
12. L. Benguigui and P. Martinoty, Phys. Rev. Lett. 63, 774 (1989), and references therein.
13. R. Blinc, M. Čopič, I. Drevenšek, A. Levstik, I. Muševič, and B. Žekš, Ferroelectrics 133, 59 (1991).
14. N.A. Clark and T.P. Rieker, Phys. Rev. A 37, 1053 (1988).
15. W.L. McMillan, Phys. Rev. A 8, 1921 (1973).
16. B.I. Halperin, T.C. Lubensky, and S.K. Ma, Phys. Rev. Lett. 32, 292 (1974).
17. R. Blinc and B. Žekš, Phys. Rev. A 18, 740 (1978).
18. B. Žekš, Mol. Cryst. Liq. Cryst. 114, 259 (1984).
19. Degussa Corp., Silica Division, 65 Challenger Rd., Ridgefield Park, NJ 07660.
20. A. Levstik, Z. Kutnjak, C. Filipič, I. Levstik, Z. Bregar, B. Žekš, and T. Carlsson, Phys. Rev. A 42, 2204 (1990).
21. C.C. Huang and J.M. Viner, Phys. Rev. A 25, 3385 (1982).
22. T. Carlsson, B. Žekš, C. Filipič, and A. Levstik, Phys. Rev. A 42, 877 (1990), and references therein.
23. Z. Kutnjak, A. Levstik, and B. Žekš, Liq. Cryst. 8, 589 (1990).
24. As far as the Goldstone mode frequency is concerned, no particular changes were observed up to (Formula presented) The magnitude of the Goldstone mode frequency further away from (Formula presented) remains to be in range (Formula presented) For (Formula presented) it slightly exceeds 3 kHz. However, it should be noted that at (Formula presented) the intensity of the Goldstone mode becomes very small in comparison to the soft mode. This makes the separation of two modes more difficult. The observed increase in the Goldstone mode frequency for (Formula presented) could easily be an artificial effect. Namely, the much larger high frequency soft mode could slightly bias the value of the Goldstone mode frequency during the two modes separation process.
25. C. Bagnuls and C. Bervillier, Phys. Rev. B 32, 7209 (1985).
26. S.R. Renn and T.C. Lubensky, Phys. Rev. A 38, 2132 (1988).
27. S. Kralj and T.J. Sluckin, Phys. Rev. E 50, 2940 (1994).
28. T. Carlsson and I. Dahl, Mol. Cryst. Liq. Cryst. 95, 373 (1983).
29. V.L. Ginzburg, Fiz. Tverd. Tela 2, 2031 (1960) [Sov. Phys. Solid State 2, 1824 (1960)].
30. D. Viehland, S.J. Jang, L.E. Cross, and M. Wuttig, Phys. Rev. B 46, 8003 (1992).