Highly tensile-strained sub-monolayer Ge nanostructure on GaSb studied by scanning tunneling microscopy
Journal article, 2017
Highly tensile-strained sub-monolayer Ge nanostructures on GaSb have been grown by molecular beam epitaxy and studied by ultrahigh-vacuum scanning tunneling microscopy. Four different coverage rates of Ge nanostructures on GaSb are achieved and investigated. It is found the growth of Ge on GaSb follows 2D growth mode. The crystal lattice of the sub-monolayer Ge nanostructures is coherent with that of the GaSb, inferring as large as 7.74% tensile strain in the Ge nanostructures.
nanostructure
tensile-strained Ge
scanning tunneling microscopy
Author
Y. Li
Chinese Academy of Sciences
Shanghai University
Y. X. Song
Chinese Academy of Sciences
Z. P. Zhang
ShanghaiTech University
Chinese Academy of Sciences
Q. M. Chen
Chinese Academy of Sciences
F.X.Zha
Shanghai University
Shu Min Wang
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
Materials Research Express
2053-1591 (eISSN)
Vol. 4 4 Article nr 045907 - 045907Subject Categories
Nano Technology
DOI
10.1088/2053-1591/aa6bbf