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

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

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/8794

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Title: X-ray-diffraction and scanning-tunneling-microscopy studies of a liquid-crystal film adsorbed on single-crystal graphite
Author: Dai, Pengcheng, 1963-; Wang, S. -K.; Taub, Haskell; Buckley, J. E.; Ehrlich, S. N.; Larese, J. Z.; Binnig, Gerd, 1947-; Smith, D. P. E.
Date: 1993-03-15
Publisher: American Physical Society
Citation: Phys. Rev. B 47, 7401-7407 (1993)
Abstract: 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. The monolayer d spacing of the new phase inferred by STM is 10% larger than that obtained by x-ray diffraction on the same sample. We suggest that part of this discrepancy results from a systematic error introduced in calibration of the STM length scale against the graphite substrate.
URI: http://hdl.handle.net/10355/8794
ISSN: 1098-0121

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