Effect of enantiomeric excess on surface structures and phase sequences in free-standing liquid-crystal films

被引：17
|
作者：
Cady, A [1 ]
Liu, ZQ
Han, XF
Wang, ST
Veum, M
Janarthanan, N
Hsu, CS
Olson, DA
Huang, CC
机构：
[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA
[2] Univ Wisconsin, Dept Phys, Stevens Point, WI 54481 USA
[3] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30050, Taiwan
来源：
PHYSICAL REVIEW E | 2002年 / 66卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.66.061704
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We present differential optical reflectivity and null transmission ellipsometry data from several mixtures of MHPBC enantiomers. From this data, we have determined the chiral smectic phase sequence as a function of enantiomeric excess. The data suggest a change in the structure of the smectic-C-alpha* phase and the surface tilt state as the enantiomeric excess is reduced. The results also show that the intermediate phases, smectic C-FI2*, smectic C-FI1*, and smectic C-alpha*, disappear sequentially on reducing the net chirality.
引用
收藏
页数：6
相关论文
共 50 条
  • [1] Layer compression in free-standing liquid-crystal films
    Mach, P
    Johnson, PM
    Wedell, ED
    Lintgen, F
    Huang, CC
    EUROPHYSICS LETTERS, 1997, 40 (04): : 399 - 404
  • [2] Calorimetric investigation of thin free-standing liquid-crystal films
    Stoebe, T
    Huang, CC
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1997, 303 : 361 - 371
  • [3] Structural characterization of surface hexatic behavior in free-standing 40.8 liquid-crystal films
    Chao, C.Y.
    Pan, T.C.
    Chou, C.F.
    Ho, J.T.
    Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 2000, 62 (2 A):
  • [4] Experiments on tracer diffusion in thin free-standing liquid-crystal films
    Bechhoefer, J
    Geminard, JC
    Bocquet, L
    Oswald, P
    PHYSICAL REVIEW LETTERS, 1997, 79 (24) : 4922 - 4925
  • [5] Stability and phase transitions of single-molecular-layer free-standing liquid-crystal films
    Veum, M
    Huang, CC
    Chou, CF
    Surendranath, V
    PHYSICAL REVIEW E, 1997, 56 (02): : 2298 - 2301
  • [6] Surface tension obtained from various smectic-a liquid-crystal free-standing films
    Mach, P
    Grantz, S
    Stoebe, T
    Huang, CC
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1997, 302 : 181 - 186
  • [7] Optical textural study of surface phase transitions involving tilted hexatic phases in free-standing liquid-crystal films
    Chao, CY
    Pan, TC
    T Ho, J
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2004, 412 : 2011 - 2018
  • [8] Thinning transitions in free-standing liquid-crystal films as the successive formation of dislocation loops
    Pankratz, S
    Johnson, PM
    Holyst, R
    Huang, CC
    PHYSICAL REVIEW E, 1999, 60 (03): : R2456 - R2459
  • [9] Freezing transitions in free-standing 7O.7 liquid-crystal films
    Chao, CY
    Lo, CR
    Ho, JT
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2001, 365 : 1463 - 1470
  • [10] Surface ordering near the smectic-A-smectic-C transition in thin, free-standing, liquid-crystal films
    V. K. Dolganov
    E. I. Demikhov
    R. Fouret
    C. Gors
    Journal of Experimental and Theoretical Physics, 1997, 84 : 522 - 524
12345