Study of Sodium Adsorption on Pb/Si(111) Surfaces

Maria Valeryevna Ryzhkova; Dmitry Anatolyevich Tsukanov; Elena Anatolyevna Borisenko; Maxim Viktorovich Ivanchenko

doi:10.4028/www.scientific.net/DDF.386.55

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 386Study of Sodium Adsorption on Pb/Si(111) Surfaces

Study of Sodium Adsorption on Pb/Si(111) Surfaces

Abstract:

The new reconstructions formed by sodium adsorption on Pb-terminated Si (111) surface were obtained: 2x2+2sqrt3x2sqrt3, 4x1, 3x3 and others. These surface structures have been observed by low-energy electron diffraction (LEED) and phase diagram for 2D binary (Na,Pb)/Si (111) system has been obtained. The (Na,Pb)/Si (111) system is considered as a two-dimensional alloy layer with highly ordered structure. Influence of two-dimensional alloys on surface conductivity of Si (111) substrate has been studied in situ by four-point-probe method.

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Periodical:

Defect and Diffusion Forum (Volume 386)

Pages:

55-60

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.386.55

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Online since:

September 2018

Authors:

Maria Valeryevna Ryzhkova, Dmitry Anatolyevich Tsukanov*, Elena Anatolyevna Borisenko, Maxim Viktorovich Ivanchenko

Keywords:

Adsorption, Lead, Low Energy Electron Diffraction, Si (111) Surface, Sodium, Surface Conductivity, Surface Reconstruction

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