@Article{HernandezHenrRappAbra:2009:MaFiIn,
author = "Hernandez, F. G. G. and Henriques, A. B. and Rappl, Paulo Henrique
de Oliveira and Abramof, Eduardo",
affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Universidade de
S{\~a}o Paulo (USP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Magnetic field induced near-band-gap optical properties in EuTe
layers",
journal = "International Journal of Modern Physics B",
year = "2009",
volume = "23",
number = "12-13",
pages = "2999--3003",
month = "May",
keywords = "Europium chalcogenides, optical properties, exchange
interaction.",
abstract = "The magnetic response of the near-band-edge optical properties is
studied in EuTe layers. In several magneto-optical experiments,
the absorption and emission are described as well as the related
Stokes shift. Specifically, we present the first experimental
report of the photoluminescence excitation (PLE) spectrum in
Faraday configuration. The PLE spectra shows to be related with
the absorption spectra through the observation of resonance
between the excitation light and the zero-field band-gap. A new
emission line appears at 1.6 eV at a moderate magnetic field in
the photoluminescence (PL) spectra. Furthermore, we examine the
absorption and PL red-shift induced by the magnetic field in the
light of the d-f exchange interaction energy involved in these
processes. Whereas the absorption red-shift shows a quadratic
dependence on the field, the PL red-shift shows a linear
dependence which is explained by spin relaxation of the excited
state.",
issn = "0217-9792",
language = "en",
targetfile = "hernandez_magnetic.pdf",
urlaccessdate = "02 maio 2024"
}