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Hydrostatic Pressure and Electric-field Effects on the Shallow Donor Impurity States in GaAs-Ga0.7Al0.3As Quantum-well Wires
Quantum well wire Hydrostatic pressure Electric field
2010/9/25
Using a variational procedure within the effective-mass approximation, we have made a theoretical study of the effects of hydrostatic pressure and applied electric fields on the binding energy of a sh...
Coherence of Elementary Excitations in Disordered GaAs/AlGaAs Superlattices
Coherence Localization Superlattices
2010/9/25
The localization properties of the single-particle and collective electron excitations were investigated in the intentionally disordered GaAs=AlGaAs superlattices by weak field magnetoresistance and R...
Exciton Polariton Emission from a Resonantly Excited GaAs Microcavity
Exciton Polariton a Resonantly Excited GaAs Microcavity
2010/10/26
Coherent emission efficiency in a 100°A GaAs SQW microcavity was enhanced one order when pumped resonantly at 10 K, compared to the off-resonant excitation. The usual kink observed in the exciton emis...
Optical and Structural Properties of GaAs/GaInP Quantum Wells Grown by Chemical Beam Epitaxy
GaAs/GaInP Quantum Wells Chemical Beam Epitaxy
2010/10/21
In this work we investigated the optical and structural properties of GaAs/GaInP quantum wells (QW) grown by Chemical Beam Epitaxy (CBE). The samples were characterized by photoluminescence (PL), phot...
We present, a systematic theoretical study of the adsorption of Ga, In and N over GaAs (110) surfaces based on parameter-free, self-consistent total energy and force calculations using the density fun...
Well-width dependence of warm electron relaxation and interface roughness scattering in GaAs/Ga1-xAlxAs multiple quantum wells
two-dimensional energy-loss rates Shubnikov-de Haas
2010/4/16
We review our recent results concerning the well-width dependence of the acoustic-phonon-assisted energy relaxation of two-dimensional (2D) warm electrons in modulation-doped GaAs/Ga1-xAlxAs multiple ...