Advertisement

The European Physical Journal E

, Volume 23, Issue 3, pp 281–287 | Cite as

Deduction of the temperature-dependent structure of the four-layer intermediate smectic phase using resonant X-ray scattering

  • P. D. Brimicombe
  • N. W. Roberts
  • S. Jaradat
  • C. Southern
  • S. -T. Wang
  • C. -C. Huang
  • E. DiMasi
  • R. Pindak
  • H. F. Gleeson
Regular Article

Abstract.

A binary mixture of an antiferroelectric liquid-crystal material containing a selenium atom and a highly chiral dopant is investigated using resonant X-ray scattering. This mixture exhibits a remarkably wide four-layer intermediate smectic phase, the structure of which is investigated over a temperature range of 16K. Analysis of the resonant X-ray scattering data allows accurate measurement of both the helicoidal pitch and the distortion angle as a function of temperature. The former decreases rapidly as the SmC * phase is approached, whilst the latter remains constant over the temperature range studied at 8°±3° . We also observe that the senses of the helicoidal pitch and the unit cell of the repeating four-layer structure are opposite in this mixture and that there is no pitch inversion over the temperature range studied.

PACS.

61.30.Eb Experimental determinations of smectic, nematic, cholesteric and other structures 78.70.Ck X-ray scattering 83.80.Xz Liquid crystals: nematic, cholesteric, smectic, discotic, etc. 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R.B. Meyer, L. Liébert, L. Strzelecki, P. Keller, J. Phys. (Paris) 36, L-69 (1975).Google Scholar
  2. 2.
    A. Chandini, E. Gorecka, Y. Ouchi, H. Takezoe, A. Fukuda, Jpn. J. Appl. Phys. 28, L1265 (1989).Google Scholar
  3. 3.
    M. Fukui, H. Orihara, Y. Yamada, N. Yamamoto, Y. Ishibashi, Jpn. J. Appl. Phys. 28, L849 (1989). Google Scholar
  4. 4.
    A.D. Chandani, T. Ouchi, H. Takezoe, A. Fukuda, K. Terashima, K. Furukawa, A. Kishi, Jpn. J. Appl. Phys. 28, L1261 (1989).Google Scholar
  5. 5.
    A. Fukuda, Y. Takanishi, T. Isozaki, K. Ishikawa, H. Takezoe, J. Mater. Chem. 4, 997 (1994).CrossRefGoogle Scholar
  6. 6.
    P. Mach, R. Pindak, A.-M. Levelut, P. Barois, H.T. Nguyen, C.C. Huang, L. Furenlid, Phys. Rev. E 81, 1015 (1998).ADSGoogle Scholar
  7. 7.
    L.S. Hirst, S.J. Watson, H.F. Gleeson, P. Cluzeau, P. Barois, R. Pindak, J. Pitney, A. Cady, P.M. Johnson, C.C. Huang, A.-M. Levelut, G. Srajer, J. Pollmann, W. Caliebe, A. Seed, M.R. Herbert, J.W. Goodby, M. Hird, Phys. Rev. E 65, 041705 (2002).CrossRefADSGoogle Scholar
  8. 8.
    P. Mach, R. Pindak, A.-M. Levelut, P. Barois, H.T. Nguyen, H. Baltes, M. Hird, K. Toyne, A. Seed, J.W. Goodby, C.C. Huang, L. Furenlid, Phys. Rev. E 60, 6793 (1999).CrossRefADSGoogle Scholar
  9. 9.
    A. Cady, J.A. Pitney, R. Pindak, L.S. Matkin, S.J. Watson, H.F. Gleeson, P. Cluzeau, P. Barois, A.-M. Levelut, W. Caliebe, J.W. Goodby, M. Hird, C.C. Huang, Phys. Rev. E 64, 050702 (2001).CrossRefADSGoogle Scholar
  10. 10.
    N.W. Roberts, S. Jaradat, L.S. Hirst, M.S. Thurlow, Y. Wang, S.T. Wang, Z.Q. Liu, C.C. Huang, J. Bai, R. Pindak, H.F. Gleeson, Europhys. Lett. 72, 976 (2005).CrossRefADSGoogle Scholar
  11. 11.
    H.F. Gleeson, L.S. Hirst, Chem. Phys. Chem. 7, 321 (2006).Google Scholar
  12. 12.
    P.M. Johnson, D.A. Olson, S. Pankratz, T. Nguyen, J. Goodby, M. Hird, C.C. Huang, Phys. Rev. Lett. 84, 4870 (2000).CrossRefADSGoogle Scholar
  13. 13.
    M. Čepič, E. Gorecka, D. Pociecha, B. Žeckš, H.T. Nguyen, J. Chem. Phys. 117, 1817 (2002).CrossRefADSGoogle Scholar
  14. 14.
    T. Akikzuki, K. Miyachi, Y. Takanishi, K. Ishikawa, H. Takezoe, A. Fukuda, Jpn. J. Appl. Phys. 38, 4832 (1999).CrossRefADSGoogle Scholar
  15. 15.
    D.A. Olson, X.F. Han, A. Cady, C.C. Huang, Phys. Rev. E 66, 021702 (2002).CrossRefADSGoogle Scholar
  16. 16.
    E. Emelyanenko, M.A. Osipov, Phys. Rev. E 68, 051703 (2003).CrossRefADSGoogle Scholar
  17. 17.
    M. Čepič, B. Žeckš, Phys. Rev. Lett. 87, 085501 (2001).CrossRefADSGoogle Scholar
  18. 18.
    M.B. Hamaneh, P.L. Taylor, Phys. Rev. E 93, 167801 (2004).Google Scholar
  19. 19.
    V.E. Dmitrienko, Acta Crystallogr., Sect. A 39, 29 (1983).CrossRefGoogle Scholar
  20. 20.
    A.-M. Levelut, B. Pansu, Phys. Rev. E 60, 6803 (1999).CrossRefADSGoogle Scholar
  21. 21.
    S. Jaradat, N.W. Roberts, Y. Wang, L.S. Hirst, H.F. Gleeson, J. Mater. Chem. 16, 3753 (2006).CrossRefGoogle Scholar
  22. 22.
    J. Mills, R. Miller, H. Gleeson, A. Seed, M. Hird, P. Styring, Mol. Cryst. Liq. Cryst. 303, 145 (1997).CrossRefGoogle Scholar

Copyright information

© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  • P. D. Brimicombe
    • 1
  • N. W. Roberts
    • 1
  • S. Jaradat
    • 1
  • C. Southern
    • 1
  • S. -T. Wang
    • 2
  • C. -C. Huang
    • 2
  • E. DiMasi
    • 3
  • R. Pindak
    • 3
  • H. F. Gleeson
    • 1
  1. 1.School of Physics and AstronomyUniversity of ManchesterManchesterUK
  2. 2.School of Physics and AstronomyUniversity of MinnesotaMinneapolisUSA
  3. 3.Brookhaven National LaboratoryNSLSUptonUSA

Personalised recommendations