Energy spectra of exciton states in disk-shaped GaAs-Ga1-xAlxAs quantum dots under growth-direction magnetic fields

2007 ◽  
Vol 56 (4) ◽  
pp. 303-309 ◽  
Author(s):  
Z. Barticevic ◽  
M. Pacheco ◽  
C. A. Duque ◽  
L. E. Oliveira
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Growth Direction ◽  
Energy Spectra

Magnetoexciton states and diamagnetic shifts in quantum dots/ultrathin quantum wells under growth-direction magnetic fields

2008 ◽  
Vol 39 (3-4) ◽  
pp. 348-350 ◽  
Author(s):  
Z. Barticevic ◽  
M. Pacheco ◽  
C.A. Duque ◽  
L.E. Oliveira
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Quantum Wells ◽  
Growth Direction

Correlation effects in quantum dots in magnetic fields

1995 ◽  
Vol 212 (3) ◽  
pp. 224-230 ◽  
Author(s):  
L. Martín-Moreno ◽  
J.J. Palacios ◽  
J.H. Oaknin ◽  
C. Tejedor
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Correlation Effects

Growth Evolution of (Zn,Cd)Se Quantum Dots Deduced from Spatially Resolved Structural and Optical Characterization

1999 ◽  
Vol 571 ◽  
Author(s):  
K. Leonard ◽  
D. Hommel ◽  
A. Stockmann ◽  
H. Selke ◽  
J. Seufert ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Wells ◽  
Three Dimensional ◽  
High Energy ◽  
Growth Direction ◽  
Growth Mode ◽  
Gradual Transition ◽  
Mode Transition ◽  
Spatially Resolved ◽  
Composition Fluctuations

ABSTRACTThe growth mode of CdSe layers grown by migration enhanced epitaxy between ZnSe barriers has been investigated. In situ reflection high-energy electron diffraction shows a gradual transition to a three-dimensional growth mode which, however, is not accompanied by a change of the surface lattice constant. High-resolution transmission electron micrographs reveal a strong Cd diffusion, leading to ternary ZnCdSe quantum wells. Furthermore. composition fluctuations perpendicular to the growth direction on a nanometer scale are found already prior to the beginning of the growth mode transition. In the case of heterostructures containing a CdSe layer that has undergone the growth mode transition, micrographs show Cd-rich quantum dots with diameters of around 8 nm and heights of around 1.5 nm within a ternary quantum well. By spatially resolved photoluminescence the emission from single quantum dots could be observed. The polarization dependence of the emission from single dots indicates an asymmetric shape of the dots with certain preferential orientations along the [110] and [110] directions.

scholarly journals Enhancement of Optical Anisotropy by Interconnection Effect along Growth Direction in Multistacked Quantum Dots

2013 ◽  
Vol 52 (1R) ◽  
pp. 012001
Author(s):  
Hideharu Tanaka ◽  
Osamu Kojima ◽  
Takashi Kita ◽  
Kouichi Akahane
Keyword(s):  
Quantum Dots ◽  
Optical Anisotropy ◽  
Growth Direction
Sign in / Sign up

Export Citation Format

Share Document