Determining the structure of Ru(0001) from low-energy electron diffraction of a single terrace

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dc.creatorde la Figuera, J.
dc.creatorPuerta, J. M.
dc.creatorCerda, J. I.
dc.creatorGabaly, F. El
dc.creatorMcCarty, K. F.
dc.date2006-01-20
dc.date2006-02-18
dc.date.accessioned2026-07-07T06:57:42Z
dc.date.available2026-07-07T06:57:42Z
dc.descriptionWhile a perfect hcp (0001) surface has three-fold symmetry, the diffraction patterns commonly obtained are six-fold symmetric. This apparent change in symmetry occurs because on a stepped surface, the atomic layers on adjacent terraces are rotated by 180 degrees. Here we use a Low-Energy Electron Microscope to acquire the three-fold diffraction pattern from a single hcp Ru terrace and measure the intensity-vs-energy curves for several diffracted beams. By means of multiple scattering calculations fitted to the experimental data with a Pendry R-factor of 0.077, we find that the surface is contracted by 3.5(+-0.9) at 456 K.
dc.description10 pages, 4 figures. Corrected some typos, added more details. Accepted for publication in Surface Science (Letters)
dc.identifierhttps://arxiv.org/abs/cond-mat/0601475
dc.identifierhttp://arxiv.org/abs/cond-mat/0601475
dc.identifierSurface Science Volume 600, Issue 9, 1 May 2006, Pages L105-L109
dc.identifierdoi:10.1016/j.susc.2006.02.027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/107070
dc.subjectMaterials Science
dc.titleDetermining the structure of Ru(0001) from low-energy electron diffraction of a single terrace
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