Compositional mapping of semiconductor quantum dots and rings

G Biasiol, S Heun - Physics Reports, 2011 - Elsevier
In this article we review the extensive experimental work on the compositional mapping of
semiconductor quantum dots and rings. After a brief introduction of the various experimental …

Multiwavelength anomalous diffraction and diffraction anomalous fine structure to study composition and strain of semiconductor nanostructures: MAD and DAFS for …

V Favre-Nicolin, MG Proietti, C Leclere… - The European Physical …, 2012 - Springer
The aim of this paper is to illustrate the use of Multi-Wavelength Anomalous Diffraction
(MAD) and Diffraction Anomalous Fine Structure (DAFS) spectroscopy for the study of …

In-plane mapping of buried InGaAs quantum rings and hybridization effects on the electronic structure

MD Teodoro, A Malachias, V Lopes-Oliveira… - Journal of Applied …, 2012 - pubs.aip.org
This work reports the investigation on the structural differences between InAs quantum rings
and their precursor quantum dots species as well as on the presence of piezoelectric fields …

Resonant coherent Bragg rod analysis of strained epitaxial heterostructures

DP Kumah, A Riposan, CN Cionca… - Applied Physics …, 2008 - pubs.aip.org
The resonant response of the complex x-ray scattering factor has been used in conjunction
with the coherent Bragg rod analysis phase-retrieval algorithm to determine the composition …

In situ X-ray diffraction during stacking of InAs/GaAs (0 0 1) quantum dot layers and photoluminescence spectroscopy

M Takahasi, T Kaizu - Journal of crystal growth, 2009 - Elsevier
The growth of five layers of InAs quantum dots embedded in GaAs matrices was investigated
by in situ synchrotron X-ray diffraction. Time-resolved X-ray diffraction revealed the evolution …

Optical emission and its decay time of type-II InP/GaAs quantum dots

PF Gomes, MPF De Godoy, GO Dias… - Journal of Physics D …, 2010 - iopscience.iop.org
We investigated the optical emission at 2 K from InP quantum dots (QDs) grown on GaAs
with and without a GaAs capping layer. Uncapped QDs present relatively long emission …

Structural, morphological, and magnetic characterization of In1− xMnxAs quantum dots grown by molecular beam epitaxy

FA Ferri, LN Coelho, VP Kunets, GJ Salamo… - Journal of Applied …, 2012 - pubs.aip.org
In this paper, we present a method to order low temperature (LT) self-assembled
ferromagnetic In 1− x Mn x As quantum dots (QDs) grown by molecular beam epitaxy (MBE) …

Resonant X-ray diffraction of self-assembled epitaxial systems: From direct to complementary chemical information

LN Coelho, B Diaz, R Magalhães-Paniago… - The European Physical …, 2012 - Springer
In this work we depict schematically the use of resonant (anomalous) X-ray diffraction as a
tool to directly probe strain and composition of self-assembled semiconductor islands. By …

Efeito Aharonov-Bohm em partículas neutras

MD Teodoro - 2011 - repositorio.ufscar.br
In classical Physics, the motion of an electrically charged particle is affected only by the
presence of a magnetic field if the particle enters a region of space in which the field is …

Direct x-ray studies of epitaxial semiconductor quantum dots

DP Kumah - 2009 - search.proquest.com
Quantum dots have sparked a remarkable amount of interest in device development and the
understanding of fundamental laws of nature. The peculiar properties of quantum dots arise …