INVESTIGADORES
FERRON Alejandro
artículos
Título:
Near-threshold properties of the electronic density of layered quantum dots
Autor/es:
ALEJANDRO FERRÓN; PABLO SERRA; OMAR OSENDA
Revista:
PHYSICAL REVIEW B
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2012 vol. 85 p. 165322 - 165322
ISSN:
1098-0121
Resumen:
We present a way to manipulate an electron trapped in a layered quantum
dot based on near-threshold properties of one-body potentials. First, we
show that potentials with a simple global parameter allow the
manipulation of the wave function, changing its spatial localization.
This phenomenon seems to be fairly general and could be implemented
using current quantum-dot quantum-well technologies and materials if a
proper layered quantum dot is designed. So, we propose a model layered
quantum dot that consists of a spherical core surrounded by successive
layers of different materials. The number of layers and the constituent
materials are chosen to highlight the near-threshold properties. The
manipulation of the spatial localization of the electron in a layered
quantum dot yields results consistent with actual experimental
parameters.