Journal ArticleDOI
Self-organization in growth of quantum dot superlattices.
Reads0
Chats0
TLDR
The growth of multilayer arrays of coherently strained islands self-organizes into a more regular three-dimensional arrangement, providing a possible route to obtain the size uniformity needed for electronic applications of quantum dot arrays.Abstract:
We investigate the growth of multilayer arrays of coherently strained islands, which may serve as ``quantum dots'' in electronic devices. A simple model reproduces the observed vertical correlation between islands in successive layers. However, the arrangement of islands is not simply repeated from layer to layer. Instead, the island size and spacing grow progressively more uniform. In effect, the structure ``self-organizes'' into a more regular three-dimensional arrangement, providing a possible route to obtain the size uniformity needed for electronic applications of quantum dot arrays.read more
Citations
More filters
Journal ArticleDOI
Growth Phenomena of Quantum Dot Structures in the Ingaas System Investigated by TEM Techniques
TL;DR: In this paper, the possibilities and limitations of transmission electron microscopy (TEM) to analyze the lattice structure of QDs down to the nm-range are discussed, and applications and limitations are discussed.
Journal ArticleDOI
Dynamical Equations With Bottom-up Self-Organizing Properties Learn Accurate Dynamical Hierarchies Without Any Loss Function
TL;DR: In this article , the authors propose a learning system where patterns are defined within the realm of nonlinear dynamics with positive and negative feedback loops, allowing attractor-repeller pairs to emerge for each pattern observed.
Book ChapterDOI
9.6.2 Ordering and stacking in quantum-dot superlattices
G. Springholz,G. Bauer +1 more
Journal ArticleDOI
Distinctions in the Ge wetting layer formation and self-assembled island nucleation between single- and multilayer SiGe/Si(0 0 1) structures
TL;DR: In this article, the features of island nucleation in multilayer SiGe structures were investigated experimentally, revealing differences in the wetting layer formation between single-and multi-layer structures.
Book ChapterDOI
Transmission Electron Microscopy of 1D-Nanostructures
TL;DR: In this paper, the results obtained by conventional and advanced electron microscopy related techniques of complex 1-D nanostructures such as spontaneous core-shell AlxGa 1−x N/GaN (0001) nanowires, ZnO/Si(111) nanorods, and InAsxP1−x/InP(001) quantum wires are reviewed.