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Type II double barrier AlxGa1-xAs/AlAs/GaAs quantum wells with ultra-thin AlAs layers (1 or 2 monolayers (ML) wide) have been studied by photoluminescence as a function of the substrate misorientation. A blue shift of the recombination lines is observed wh ...
The onset of chaotic ion dynamics in electrostatic waves is investigated in a linear magnetized plasma. The existence of a threshold for heating in agreement with the predictions of single particle Hamiltonian theories and the fast time scale for velocity ...
We investigated the optical properties of excitons in quasi-one-dimensional semiconductor quantum structures by photoluminescence and photoluminescence excitation: High-quality GaAs/AlxGa1-xAs heterostructures were grown using low-pressure organometallic c ...
Difficulties are described which are encountered in NMR spectroscopy when attempting to invert simultaneously several multiplets that comprise transitions which share common energy levels. These problems turn out to be due to the undesirable excitation of ...
