Dissertação de Mestrado
Magneto-éxcitons em super-redes semicondutoras de InGaAs/InAlAs
Fecha
2004-05-25Autor
Marcelo Valadares de Magalhaes Pereira
Institución
Resumen
In this work we study a sample with two undoped In0,53Ga0,47As/In0,52Al0,48As superlattices grown in sequence on top of each other, on the same InP substrate. We performed magnetophotoluminescence measurements with magnetic fields up to 12 T for different temperatures from 4 K to 45 K. We obtain the exciton binding energy and the effective reduced mass for this structure and their variation with the temperature and the magnetic field.