Back to Search Start Over

Universal building block for (1 1 0)-family silicon and germanium surfaces

Authors :
Zhachuk, R. A.
Shklyaev, A. A.
Source :
Applied Surface Science 494 (2019) 46-50
Publication Year :
2020

Abstract

The universal building block which is an essential part of all atomic structures on (1 1 0) silicon and germanium surfaces and their vicinals is proposed from first-principles calculations and a comparison of results with available experimental data. The atomic models for the (1 1 0)-(16x2), (1 1 0)-c(8x10), (1 1 0)-(5x8) and (17 15 1)-(2x1) surface reconstructions are developed on the basis of the building block structure. The models exhibit very low surface energies and excellent agreements with bias-dependent scanning tunneling microscopy (STM) images. It is shown experimentally using STM that the Si(47 35 7) surface shares the same building block. Our study closes the long-debated pentagon structures on (1 1 0) silicon and germanium surfaces.

Details

Database :
arXiv
Journal :
Applied Surface Science 494 (2019) 46-50
Publication Type :
Report
Accession number :
edsarx.2001.00332
Document Type :
Working Paper
Full Text :
https://doi.org/10.1016/j.apsusc.2019.07.144