Self-organized growth on GaAs surfaces

BA Joyce, DD Vvedensky - Materials Science and Engineering: R: Reports, 2004 - Elsevier
GaAs (0 0 1) has been one of the most intensively studied surfaces for the past 30 years due
both to its importance as a substrate for epitaxial growth and to the challenge its phase …

Atomic structure of InAs quantum dots on GaAs

K Jacobi - Progress in Surface Science, 2003 - Elsevier
In recent years, the self-assembled growth of semiconductor nanostructures, that show
quantum size effects, has been of considerable interest. Laser devices operating with self …

Atomically resolved structure of InAs quantum dots

J Marquez, L Geelhaar, K Jacobi - Applied Physics Letters, 2001 - pubs.aip.org
InAs was grown by molecular-beam epitaxy onto GaAs (001) until quantum dots (QDs)
formed. At this point, the growth was interrupted and the uncovered QDs were investigated …

Shape of free and constrained group-IV crystallites: Influence of surface energies

AA Stekolnikov, F Bechstedt - Physical Review B—Condensed Matter and …, 2005 - APS
The equilibrium crystal shapes of the group-IV materials diamond, Si, and Ge are
constructed based on surface energies obtained by means of ab initio calculations. The …

Suppression of thermal degradation of InGaN/GaN quantum wells in green laser diode structures during the epitaxial growth

Z Li, J Liu, M Feng, K Zhou, S Zhang, H Wang… - Applied Physics …, 2013 - pubs.aip.org
Local InGaN quantum well (QW) decomposition and resultant inhomogeneous
luminescence in green laser diode (LD) epitaxial structures are investigated using micro …

InGaAs quantum dot molecules around self-assembled GaAs nanomound templates

JH Lee, ZM Wang, NW Strom, YI Mazur… - Applied Physics …, 2006 - pubs.aip.org
Several distinctive self-assembled InGaAs quantum dot molecules (QDMs) are studied. The
QDMs self-assemble around nanoscale-sized GaAs moundlike templates fabricated by …

Molecular beam epitaxy growth of GaAs/InAs core–shell nanowires and fabrication of InAs nanotubes

T Rieger, M Luysberg, T Schäpers… - Nano …, 2012 - ACS Publications
We present results about the growth of GaAs/InAs core–shell nanowires (NWs) using
molecular beam epitaxy. The core is grown via the Ga droplet-assisted growth mechanism …

First-principles studies of kinetics in epitaxial growth of III–V semiconductors

P Kratzer, E Penev, M Scheffler - Applied Physics A, 2002 - Springer
We demonstrate how first-principles calculations using density-functional theory (DFT) can
be applied to gain insight into the molecular processes that rule the physics of materials …

Shape transition during epitaxial growth of quantum dots on : Theory and experiment

P Kratzer, QKK Liu, P Acosta-Diaz, C Manzano… - Physical Review B …, 2006 - APS
For heteroepitaxial growth of InAs islands on GaAs (001), a transition of shapes is observed
experimentally by scanning-tunneling microscopy and analyzed theoretically in terms of the …

Effect of strain on surface diffusion in semiconductor heteroepitaxy

E Penev, P Kratzer, M Scheffler - Physical Review B, 2001 - APS
We present a first-principles analysis of the strain renormalization of the cation diffusivity on
the GaAs (001) surface. For the example of I n/G a A s (001)− c (4× 4) it is shown that the …