Reflection high-energy electron diffraction/scanning tunneling microscopy study of InAs growth on the three low index orientations of GaAs: Two-dimensional versus three-dimensional growth and strain relaxation

Author(s):  
B. A. Joyce
Langmuir ◽  
2009 ◽  
Vol 25 (23) ◽  
pp. 13606-13613 ◽  
Author(s):  
Florian Mögele ◽  
Donato Fantauzzi ◽  
Ulf Wiedwald ◽  
Paul Ziemann ◽  
Bernhard Rieger

1999 ◽  
Vol 571 ◽  
Author(s):  
P. Ballet ◽  
J.B. Smathers ◽  
G.J. Salamo

ABSTRACTWe report an in-situ molecular beam epitaxy – scanning tunneling microscopy study of three dimensional (3D) self organized InAs islands on (AI,Ga)As surfaces. The influence of the presence of Al atoms on the roughness of the starting surface and on the island density is shown by investigating several Al compositions. We emphasize the case of InAs/AlAs and point out the major differences between this system and the widely studied InAs/GaAs system.


1991 ◽  
Vol 237 ◽  
Author(s):  
M. Lopez ◽  
Y. Takano ◽  
K. Pak ◽  
H. Yonezu

ABSTRACTThe growth mode of Si on GaAs(100) substrates and that of GaAs on very thin (1/4 ∼ 3 ML) Si films grown pseudomorphically on GaAs was investigated by observing the behavior of the reflection-high energy electron diffraction (RHEED) specular spot intensity. From the presence of RHEED oscillations during the initial stage of the growth of Si on GaAs we infer a two-dimensional growth with nucleation on the terraces up to a thickness of 3 ML. During the posterior growth of GaAs on the pseudomorphic Si films, a tendency towards three dimensional growth was observed. This tendency increased with the Si interlayer thickness. The causes of the formation of these islands are discussed.


Sign in / Sign up

Export Citation Format

Share Document