X-ray diffraction and scanning tunneling microscopy studies of a liquid crystal film adsorbed on single-crystal graphite

Technical Report · Thu Jan 02 04:00:00 EST 1992

OSTI ID:5732118

Dai, P; Wang, S K; Taub, H; Buckley, J E ^[1]; Ehrlich, S N ^[2]; Larese, J Z ^[3]; Binnig, G; Smith, D P.E. ^[4]

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1. Missouri Univ., Columbia, MO (United States). Dept. of Physics and Astronomy
2. Purdue Univ., Lafayette, IN (United States). School of Materials Engineering
3. Brookhaven National Lab., Upton, NY (United States)
4. IBM Physics Group, Muenchen (Germany)

Synchrotron x-ray diffraction and scanning tunneling microscopy (STM) experiments reveal a new commensurate monolayer structure of 10CB (decylcyanobiphenyl) molecules adsorbed on the (0001) graphite surface. Our results are consistent with two generic structures for nCB monolayers on surfaces of hexagonal symmetry. We discuss possible origins of a 10% discrepancy in the monolayer d-spacing inferred by the x-ray and STM techniques on the same single-crystal sample.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; NSF; USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016; FG02-85ER45183
• OSTI ID: 5732118
• Report Number(s): BNL-47131; CNN: DMR-8704938; DMR-9011069
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
665100* -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARBON
COHERENT SCATTERING
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELECTRON MICROSCOPY
ELEMENTAL MINERALS
ELEMENTS
FLUIDS
GRAPHITE
HYDROCARBONS
LAYERS
LIQUID CRYSTALS
LIQUIDS
MICROSCOPY
MINERALS
NONMETALS
ORGANIC COMPOUNDS
SCANNING ELECTRON MICROSCOPY
SCATTERING
X-RAY DIFFRACTION