Surface structures and transitions in the smectic-C* phase of one chiral liquid crystal compound

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

Volumn 65, Issue 1, 2002, Pages

  Han, X F ^a   Olson, D A ^a   Cady, A ^a   Goodby, J W ^b   Huang, C C ^a  

^a University of Minnesota   (United States)

^b UNIVERSITY OF HULL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ANTICLINIC SURFACE LAYERS; CHIRAL LIQUID CRYSTALS; DIFFERENTIAL OPTICAL REFLECTIVITY (DOR); FREE-STANDING FILMS;

COMPUTER SIMULATION; ELECTRIC CURRENTS; ELECTRIC FIELDS; ELECTRIC POTENTIAL; LIGHT POLARIZATION; LINEARIZATION; PHASE TRANSITIONS; PYROELECTRICITY; SPURIOUS SIGNAL NOISE; SURFACE STRUCTURE;

SMECTIC LIQUID CRYSTALS;

EID: 37649030979     PISSN: 15393755     EISSN: 15502376     Source Type: Journal    
DOI: 10.1103/PhysRevE.65.010704     Document Type: Article

References (22)

1. Ch. Bahr, Int. J. Mod. Phys. B 8, 3051 (1994).
2. T. Stoebe and C. C. Huang, Int. J. Mod. Phys. B 9, 2285 (1995).
3. D. Schlauf and Ch. Bahr, Phys. Rev. E 57, R1235 (1998).
4. S. Pankratz, P. M. Johnson, and C. C. Huang, Rev. Sci. Instrum. 71, 3184 (2000).
5. R. M. A. Azzam and N. M. Bashara. Ellipsometry and Polarized Light (North Holland, Amsterdam, 1989).
6. R. Pindak, C. Y. Young, R. B. Meyer, and N. A. Clark, Phys. Rev. Lett. 45, 1193 (1980).
7. N. M. Shtykov, J. K. Vij, R. A. Lewis, M. Hird, and J. W. Goodby, Phys. Rev. E 62, 2279 (2000).
8. P. M. Johnson, D. A. Olson, S. Pankratz, Ch. Bahr, J. W. Goodby, and C. C. Huang, Phys. Rev. E 62, 8106 (2000).
9. Ch. Bahr and D. Fliegner, Phys. Rev. A 46, 7657 (1992).
10. D. R. Link, Ph.D. thesis, University of Colorado at Boulder, 1998.
11. D. A. Olson, S. Pankratz, P. M. Johnson, A. Cady, H. T. Nguyen, and C. C. Huang, Phys. Rev. E 63, 061711 (2001).
12. α phases, when the net polarization passes zero as the helical pitches evolve with temperature, the whole film structure reorients by 180°. This reorientation causes the jump [11].
13. P. M. Johnson, D. A. Olson, S. Pankratz, T. Nguyen, J. W. Goodby, M. Hird, and C. C. Huang, Phys. Rev. Lett. 84, 4870 (2000).
14. D. W. Berreman, J. Opt Soc. Am. 62, 502 (1972); H. Wöhler, G. Haas, M. Fritsch, and D. A. Mlynski, J. Opt. Soc. Am. A 5, 1554 (1988).
15. D. W. Berreman, J. Opt Soc. Am. 62, 502 (1972); H. Wöhler, G. Haas, M. Fritsch, and D. A. Mlynski, J. Opt. Soc. Am. A 5, 1554 (1988).
16. K. Binder, Phase Transitions and Critical Phenomena, edited by C. Domb and J. L. Liebowitz (Academic, London, 1986), Vol. 8; P. O. Andreeva, V. K. Dolganov, C. Gors, R. Fouret, and E. I. Kats, Phys. Rev. E 59, 4143 (1999).
17. K. Binder, Phase Transitions and Critical Phenomena, edited by C. Domb and J. L. Liebowitz (Academic, London, 1986), Vol. 8; P. O. Andreeva, V. K. Dolganov, C. Gors, R. Fouret, and E. I. Kats, Phys. Rev. E 59, 4143 (1999).
18. P. M. Johnson, S. Pankratz, P. Mach, H. T. Nguyen, and C. C. Huang, Phys. Rev. Lett. 83, 4073 (1999).
19. While both ψ and Δ are dependent on the orientation of the field, in practice we have found that the ψ versus Δ plot is more useful in detecting the structural change.
20. α) and T<86.6°C (in the SmC*) yield anticlinic surface layers. Thus we believe that our free-standing films should have the same surface arrangement in this temperature window.
21. FI2 phase occurred at 82.3°C.
22. The thickness of this film was estimated by the color. See E. B. Sirota, P. S. Pershan, L. B. Sorensen, and J. Collett, Phys. Rev. A 36, 2890 (1987).