SCANNING TUNNELING MICROSCOPIC STUDY OF THE INTERFACIAL ORDER IN A FERROELECTRIC LIQUID-CRYSTAL

被引:4
作者
BRANDOW, SL
HARRISON, JA
DILELLA, DP
COLTON, RJ
PFEIFFER, S
SHASHIDHAR, R
机构
[1] GEOCENTERS INC,10903 INDIAN HEAD HIGHWAY,FT WASHINGTON,MD 20744
[2] USN,RES LAB,CTR BIO MOLEC SCI & ENGN,WASHINGTON,DC 20375
关键词
D O I
10.1080/02678299308029062
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present scanning tunnelling microscopy images of a ferroelectric liquid crystal in its chiral smectic C phase. These images show evidence of pronounced interaction between the adjacent lateral dipoles located near the chiral centres of neighbouring molecules. The two dimensional structure at the graphite-liquid crystal interface is found to be highly ordered. Features of this crystal-like order are the pronounced dimer arrangement within a layer and a kinked conformation in which the aromatic core is tilted with respect to the chains. The core axis is tilted at 30-degrees with respect to the layer normal in the plane of the interface. This tilt is very similar to the tilt angle of the bulk material
引用
收藏
页码:163 / 170
页数:8
相关论文
共 16 条
  • [1] MECHANISMS FOR THE DEPOSITION OF NANOMETER-SIZED STRUCTURES FROM ORGANIC FLUIDS USING THE SCANNING TUNNELING MICROSCOPE
    BERNHARDT, RH
    MCGONIGAL, GC
    SCHNEIDER, R
    THOMSON, DJ
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1990, 8 (01): : 667 - 671
  • [2] EVIDENCE OF PRONOUNCED POSITIONAL ORDER AT THE GRAPHITE LIQUID-CRYSTAL INTERFACE OF A BULK NEMATIC MATERIAL
    BRANDOW, SL
    DILELLA, DP
    COLTON, RJ
    SHASHIDHAR, R
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (02): : 1115 - 1118
  • [3] IMAGING OF LIQUID-CRYSTALS USING A TUNNELLING MICROSCOPE
    FOSTER, JS
    FROMMER, JE
    [J]. NATURE, 1988, 333 (6173) : 542 - 545
  • [4] FOSTER JS, 1989, P SOC PHOTO-OPT INS, V1080, P200, DOI 10.1117/12.976420
  • [5] Gray GW., 1984, SMECTIC LIQUID CRYST
  • [6] ANCHORING STRUCTURE OF SMECTIC LIQUID-CRYSTAL LAYERS ON MOS2 OBSERVED BY SCANNING TUNNELING MICROSCOPY
    HARA, M
    IWAKABE, Y
    TOCHIGI, K
    SASABE, H
    GARITO, AF
    YAMADA, A
    [J]. NATURE, 1990, 344 (6263) : 228 - 230
  • [7] CORRELATION BETWEEN BULK ORDERINGS AND ANCHORING STRUCTURES OF LIQUID-CRYSTALS STUDIED BY SCANNING TUNNELING MICROSCOPY
    IWAKABE, Y
    HARA, M
    KONDO, K
    TOCHIGI, K
    MUKOH, A
    YAMADA, A
    GARITO, AF
    SASABE, H
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1991, 30 (10): : 2542 - 2546
  • [8] ADSORPTION OF LIQUID-CRYSTALS IMAGED USING SCANNING TUNNELING MICROSCOPY
    MCMASTER, TJ
    CARR, H
    MILES, MJ
    CAIRNS, P
    MORRIS, VJ
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1990, 8 (01): : 672 - 674
  • [9] SIMPLE MOLECULAR THEORY OF SMECTIC C PHASE
    MCMILLAN, WL
    [J]. PHYSICAL REVIEW A, 1973, 8 (04): : 1921 - 1929
  • [10] MEYER RB, 1975, J PHYS LETT-PARIS, V36, pL69, DOI 10.1051/jphyslet:0197500360306900