Relativistic effects on LEED intensities from Au(111)
نویسندگان
چکیده
منابع مشابه
RELATIVISTIC EFFECTS ON LEED INTENSITIES FROM Au(l11)
Comparison of relativistically and nonrelativistically calculated intensity versus energy profiles in low energy electron diffraction (LEED) from the (111) surface of Au (2 = 79) reveals that relativistic corrections are quite significant. They can however, be obtained in very good approximation by quasirelativistic calculations, in which spin-averaged relativistic phase shifts are used as inpu...
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The diffraction of low energy electrons from disordered overlayers adsorbed on ordered substrates is treated theoretically by an extension of Beeby’s multiple scattering method. A lattice gas model is assumed for the disordered adsorbate layer. Multiple scattering within a certain area around each atom each atom of the overlayer and within the ordered substrate is treated self-consistently, the...
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The LEED pattern of clean (101) surfaces of Au show a characteristic (1 X 2) superstructure. The diffuseness of reflections in the reciprocal [OlO] direction is caused by onedimensional disorder of chains, strictly ordered into spatial [lo]] direction. There is a transition from this disordered superstructure to the normal (1 X 1) structure at 420 r 15°C. The angular profiles of the (04) and (0...
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ژورنال
عنوان ژورنال: Surface Science
سال: 1978
ISSN: 0039-6028
DOI: 10.1016/0039-6028(78)90136-x